diff --git a/src/lang/english.txt b/src/lang/english.txt
index 33b9f155b7..b72538af7f 100644
--- a/src/lang/english.txt
+++ b/src/lang/english.txt
@@ -3695,6 +3695,7 @@ STR_EDIT_SIGN_CAPTION                                           :{WHITE}Edit sig
 STR_EDIT_SIGN_LOCATION_TOOLTIP                                  :{BLACK}Centre the main view on sign location. Ctrl+Click to open a new viewport on sign location
 STR_EDIT_SIGN_NEXT_SIGN_TOOLTIP                                 :{BLACK}Go to next sign
 STR_EDIT_SIGN_PREVIOUS_SIGN_TOOLTIP                             :{BLACK}Go to previous sign
+STR_EDIT_SIGN_TEXT_COLOUR_TOOLTIP                               :{BLACK}Colour of the sign's text
 
 STR_EDIT_SIGN_SIGN_OSKTITLE                                     :{BLACK}Enter a name for the sign
 
diff --git a/src/saveload/saveload.h b/src/saveload/saveload.h
index 961bb7e10f..589b549ba8 100644
--- a/src/saveload/saveload.h
+++ b/src/saveload/saveload.h
@@ -412,6 +412,7 @@ enum SaveLoadVersion : uint16_t {
 	SLV_DOCKS_UNDER_BRIDGES,                ///< 360  PR#14594 Allow docks under bridges.
 	SLV_LOCKS_UNDER_BRIDGES,                ///< 361  PR#14595 Allow locks under bridges.
 	SLV_ENGINE_MULTI_RAILTYPE,              ///< 362  PR#14357 v15.0 Train engines can have multiple railtypes.
+	SLV_SIGN_TEXT_COLOURS,                  ///< 363  PR#14743 Configurable sign text colors in scenario editor.
 
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };
diff --git a/src/saveload/signs_sl.cpp b/src/saveload/signs_sl.cpp
index 1f3b36b98b..f0486ad5e9 100644
--- a/src/saveload/signs_sl.cpp
+++ b/src/saveload/signs_sl.cpp
@@ -19,15 +19,16 @@
 
 /** Description of a sign within the savegame. */
 static const SaveLoad _sign_desc[] = {
-	SLE_CONDVAR(Sign, name,  SLE_NAME,                   SL_MIN_VERSION, SLV_84),
+	SLE_CONDVAR(Sign, name, SLE_NAME, SL_MIN_VERSION, SLV_84),
 	SLE_CONDSSTR(Sign, name, SLE_STR | SLF_ALLOW_CONTROL, SLV_84, SL_MAX_VERSION),
-	SLE_CONDVAR(Sign, x,     SLE_FILE_I16 | SLE_VAR_I32, SL_MIN_VERSION, SLV_5),
-	SLE_CONDVAR(Sign, y,     SLE_FILE_I16 | SLE_VAR_I32, SL_MIN_VERSION, SLV_5),
-	SLE_CONDVAR(Sign, x,     SLE_INT32,                  SLV_5, SL_MAX_VERSION),
-	SLE_CONDVAR(Sign, y,     SLE_INT32,                  SLV_5, SL_MAX_VERSION),
-	SLE_CONDVAR(Sign, owner, SLE_UINT8,                  SLV_6, SL_MAX_VERSION),
-	SLE_CONDVAR(Sign, z,     SLE_FILE_U8  | SLE_VAR_I32, SL_MIN_VERSION, SLV_164),
-	SLE_CONDVAR(Sign, z,     SLE_INT32,                SLV_164, SL_MAX_VERSION),
+	SLE_CONDVAR(Sign, x, SLE_FILE_I16 | SLE_VAR_I32, SL_MIN_VERSION, SLV_5),
+	SLE_CONDVAR(Sign, y, SLE_FILE_I16 | SLE_VAR_I32, SL_MIN_VERSION, SLV_5),
+	SLE_CONDVAR(Sign, x, SLE_INT32, SLV_5, SL_MAX_VERSION),
+	SLE_CONDVAR(Sign, y, SLE_INT32, SLV_5, SL_MAX_VERSION),
+	SLE_CONDVAR(Sign, owner, SLE_UINT8, SLV_6, SL_MAX_VERSION),
+	SLE_CONDVAR(Sign, z, SLE_FILE_U8  | SLE_VAR_I32, SL_MIN_VERSION, SLV_164),
+	SLE_CONDVAR(Sign, z, SLE_INT32, SLV_164, SL_MAX_VERSION),
+	SLE_CONDVAR(Sign, text_colour, SLE_UINT8, SLV_SIGN_TEXT_COLOURS, SL_MAX_VERSION),
 };
 
 struct SIGNChunkHandler : ChunkHandler {
diff --git a/src/script/api/script_sign.cpp b/src/script/api/script_sign.cpp
index e95511f1fe..3a3730378e 100644
--- a/src/script/api/script_sign.cpp
+++ b/src/script/api/script_sign.cpp
@@ -45,7 +45,7 @@
 	EnforcePreconditionEncodedText(false, text);
 	EnforcePreconditionCustomError(false, ::Utf8StringLength(text) < MAX_LENGTH_SIGN_NAME_CHARS, ScriptError::ERR_PRECONDITION_STRING_TOO_LONG);
 
-	return ScriptObject::Command<CMD_RENAME_SIGN>::Do(sign_id, text);
+	return ScriptObject::Command<CMD_RENAME_SIGN>::Do(sign_id, text, INVALID_COLOUR);
 }
 
 /* static */ std::optional<std::string> ScriptSign::GetName(SignID sign_id)
@@ -67,7 +67,7 @@
 {
 	EnforceDeityOrCompanyModeValid(false);
 	EnforcePrecondition(false, IsValidSign(sign_id));
-	return ScriptObject::Command<CMD_RENAME_SIGN>::Do(sign_id, "");
+	return ScriptObject::Command<CMD_RENAME_SIGN>::Do(sign_id, "", INVALID_COLOUR);
 }
 
 /* static */ SignID ScriptSign::BuildSign(TileIndex location, Text *name)
diff --git a/src/signs_base.h b/src/signs_base.h
index 57d5e34a7c..195d56225b 100644
--- a/src/signs_base.h
+++ b/src/signs_base.h
@@ -24,7 +24,8 @@ struct Sign : SignPool::PoolItem<&_sign_pool> {
 	int32_t x = 0;
 	int32_t y = 0;
 	int32_t z = 0;
-	Owner owner = INVALID_OWNER; // placed by this company. Anyone can delete them though. OWNER_NONE for gray signs from old games.
+	Owner owner = INVALID_OWNER; // Placed by this company. Anyone can delete them though. OWNER_NONE for gray signs from old games.
+	Colours text_colour = COLOUR_WHITE; // Colour of the sign's text. Only relevant for OWNER_DEITY.
 
 	Sign() {}
 	Sign(Owner owner, int32_t x, int32_t y, int32_t z, const std::string &name) : name(name), x(x), y(y), z(z), owner(owner) {}
diff --git a/src/signs_cmd.cpp b/src/signs_cmd.cpp
index 3f93e29726..f8b4fb1965 100644
--- a/src/signs_cmd.cpp
+++ b/src/signs_cmd.cpp
@@ -62,9 +62,10 @@ std::tuple<CommandCost, SignID> CmdPlaceSign(DoCommandFlags flags, TileIndex til
  * @param flags type of operation
  * @param sign_id index of the sign to be renamed/removed
  * @param text the new name or an empty string when resetting to the default
+ * @param text_colour colour of the sign's text. Only relevant for OWNER_DEITY. Use INVALID_COLOUR to keep the current colour.
  * @return the cost of this operation or an error
  */
-CommandCost CmdRenameSign(DoCommandFlags flags, SignID sign_id, const std::string &text)
+CommandCost CmdRenameSign(DoCommandFlags flags, SignID sign_id, const std::string &text, Colours text_colour)
 {
 	Sign *si = Sign::GetIfValid(sign_id);
 	if (si == nullptr) return CMD_ERROR;
@@ -77,6 +78,7 @@ CommandCost CmdRenameSign(DoCommandFlags flags, SignID sign_id, const std::strin
 		if (flags.Test(DoCommandFlag::Execute)) {
 			/* Assign the new one */
 			si->name = text;
+			if (text_colour != INVALID_COLOUR) si->text_colour = text_colour;
 			if (_game_mode != GM_EDITOR) si->owner = _current_company;
 
 			si->UpdateVirtCoord();
diff --git a/src/signs_cmd.h b/src/signs_cmd.h
index 75f66b0044..4faa7e5b31 100644
--- a/src/signs_cmd.h
+++ b/src/signs_cmd.h
@@ -12,9 +12,10 @@
 
 #include "command_type.h"
 #include "signs_type.h"
+#include "gfx_type.h"
 
 std::tuple<CommandCost, SignID> CmdPlaceSign(DoCommandFlags flags, TileIndex tile, const std::string &text);
-CommandCost CmdRenameSign(DoCommandFlags flags, SignID sign_id, const std::string &text);
+CommandCost CmdRenameSign(DoCommandFlags flags, SignID sign_id, const std::string &text, Colours text_colour);
 CommandCost CmdMoveSign(DoCommandFlags flags, SignID sign_id, TileIndex tile);
 
 DEF_CMD_TRAIT(CMD_PLACE_SIGN,  CmdPlaceSign,  CommandFlag::Deity, CommandType::OtherManagement)
diff --git a/src/signs_gui.cpp b/src/signs_gui.cpp
index b0b2c94e55..b675bf72aa 100644
--- a/src/signs_gui.cpp
+++ b/src/signs_gui.cpp
@@ -30,6 +30,8 @@
 #include "signs_cmd.h"
 #include "timer/timer.h"
 #include "timer/timer_window.h"
+#include "dropdown_common_type.h"
+#include "dropdown_func.h"
 
 #include "widgets/sign_widget.h"
 
@@ -379,12 +381,13 @@ Window *ShowSignList()
  * Actually rename the sign.
  * @param index the sign to rename.
  * @param text  the new name.
+ * @param text_colour Colour of the text if the sign is owned by OWNER_DEITY.
  * @return true if the window will already be removed after returning.
  */
-static bool RenameSign(SignID index, std::string_view text)
+static bool RenameSign(SignID index, std::string_view text, Colours text_colour)
 {
 	bool remove = text.empty();
-	Command<CMD_RENAME_SIGN>::Post(remove ? STR_ERROR_CAN_T_DELETE_SIGN : STR_ERROR_CAN_T_CHANGE_SIGN_NAME, index, std::string{text});
+	Command<CMD_RENAME_SIGN>::Post(remove ? STR_ERROR_CAN_T_DELETE_SIGN : STR_ERROR_CAN_T_CHANGE_SIGN_NAME, index, std::string{text}, text_colour);
 	return remove;
 }
 
@@ -402,6 +405,7 @@ struct SignWindow : Window, SignList {
 	QueryString name_editbox;
 	SignID cur_sign{};
 	WidgetID last_user_action = INVALID_WIDGET; ///< Last started user action.
+	std::optional<Colours> new_colour; ///< New colour selected by the user. Will be assigned when the OK button is clicked.
 
 	SignWindow(WindowDesc &desc, const Sign *si) : Window(desc), name_editbox(MAX_LENGTH_SIGN_NAME_CHARS * MAX_CHAR_LENGTH, MAX_LENGTH_SIGN_NAME_CHARS)
 	{
@@ -412,6 +416,11 @@ struct SignWindow : Window, SignList {
 
 		this->InitNested(WN_QUERY_STRING_SIGN);
 
+		if (_game_mode != GameMode::GM_EDITOR) {
+			this->GetWidget<NWidgetStacked>(WID_QES_COLOUR_PANE)->SetDisplayedPlane(SZSP_VERTICAL);
+			this->ReInit();
+		}
+
 		UpdateSignEditWindow(si);
 		this->SetFocusedWidget(WID_QES_TEXT);
 	}
@@ -426,8 +435,10 @@ struct SignWindow : Window, SignList {
 		}
 
 		this->cur_sign = si->index;
+		this->new_colour.reset();
 
 		this->SetWidgetDirty(WID_QES_TEXT);
+		this->SetWidgetDirty(WID_QES_COLOUR);
 		this->SetFocusedWidget(WID_QES_TEXT);
 	}
 
@@ -464,14 +475,47 @@ struct SignWindow : Window, SignList {
 			case WID_QES_CAPTION:
 				return GetString(this->name_editbox.caption);
 
+			case WID_QES_COLOUR:
+				return GetString(STR_COLOUR_DARK_BLUE + this->new_colour.value_or(Sign::Get(this->cur_sign)->text_colour));
+
 			default:
 				return this->Window::GetWidgetString(widget, stringid);
 		}
 	}
 
+	void UpdateWidgetSize(WidgetID widget, Dimension &size, const Dimension &padding, Dimension &fill, Dimension &resize) override
+	{
+		if (widget == WID_QES_COLOUR) {
+			const Dimension square_size = GetSpriteSize(SPR_SQUARE);
+			const uint string_padding = square_size.width + WidgetDimensions::scaled.hsep_normal + padding.width;
+			for (Colours colour = COLOUR_BEGIN; colour != COLOUR_END; ++colour) {
+				size.width = std::max(size.width, GetStringBoundingBox(STR_COLOUR_DARK_BLUE + colour).width + string_padding);
+			}
+			size.width = std::max(size.width, GetStringBoundingBox(STR_COLOUR_DEFAULT).width + string_padding);
+			return;
+		}
+
+		Window::UpdateWidgetSize(widget, size, padding, fill, resize);
+	}
+
+	void ShowColourDropDownMenu()
+	{
+		DropDownList list;
+		for (Colours colour = COLOUR_BEGIN; colour != COLOUR_END; ++colour) {
+			list.emplace_back(MakeDropDownListIconItem(SPR_SQUARE, GetColourPalette(colour), STR_COLOUR_DARK_BLUE + colour, colour));
+		}
+		const int selected = this->new_colour.value_or(Sign::Get(this->cur_sign)->text_colour);
+		ShowDropDownList(this, std::move(list), selected, WID_QES_COLOUR);
+	}
+
 	void OnClick([[maybe_unused]] Point pt, WidgetID widget, [[maybe_unused]] int click_count) override
 	{
 		switch (widget) {
+			case WID_QES_COLOUR: {
+				ShowColourDropDownMenu();
+				break;
+			}
+
 			case WID_QES_LOCATION: {
 				const Sign *si = Sign::Get(this->cur_sign);
 				TileIndex tile = TileVirtXY(si->x, si->y);
@@ -500,7 +544,7 @@ struct SignWindow : Window, SignList {
 			}
 
 			case WID_QES_OK:
-				if (RenameSign(this->cur_sign, this->name_editbox.text.GetText())) break;
+				if (RenameSign(this->cur_sign, this->name_editbox.text.GetText(), this->new_colour.value_or(INVALID_COLOUR))) break;
 				[[fallthrough]];
 
 			case WID_QES_CANCEL:
@@ -509,7 +553,7 @@ struct SignWindow : Window, SignList {
 
 			case WID_QES_DELETE:
 				/* Only need to set the buffer to null, the rest is handled as the OK button */
-				RenameSign(this->cur_sign, "");
+				RenameSign(this->cur_sign, "", INVALID_COLOUR);
 				/* don't delete this, we are deleted in Sign::~Sign() -> DeleteRenameSignWindow() */
 				break;
 
@@ -524,7 +568,7 @@ struct SignWindow : Window, SignList {
 	{
 		switch (this->last_user_action) {
 			case WID_QES_MOVE: // Place sign button
-				RenameSign(this->cur_sign, this->name_editbox.text.GetText());
+				RenameSign(this->cur_sign, this->name_editbox.text.GetText(), this->new_colour.value_or(INVALID_COLOUR));
 				MoveSign(this->cur_sign, tile);
 				this->Close();
 				break;
@@ -537,6 +581,11 @@ struct SignWindow : Window, SignList {
 	{
 		this->RaiseButtons();
 	}
+
+	void OnDropdownSelect(WidgetID widget, int index, int) override
+	{
+		if (widget == WID_QES_COLOUR) this->new_colour = static_cast<Colours>(index);
+	}
 };
 
 static constexpr std::initializer_list<NWidgetPart> _nested_query_sign_edit_widgets = {
@@ -553,6 +602,10 @@ static constexpr std::initializer_list<NWidgetPart> _nested_query_sign_edit_widg
 		NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_QES_CANCEL), SetMinimalSize(60, 12), SetStringTip(STR_BUTTON_CANCEL),
 		NWidget(WWT_PUSHTXTBTN, COLOUR_GREY, WID_QES_DELETE), SetMinimalSize(60, 12), SetStringTip(STR_TOWN_VIEW_DELETE_BUTTON),
 		NWidget(WWT_TEXTBTN, COLOUR_GREY, WID_QES_MOVE), SetMinimalSize(60, 12), SetStringTip(STR_BUTTON_MOVE),
+		NWidget(NWID_SELECTION, INVALID_COLOUR, WID_QES_COLOUR_PANE),
+			NWidget(WWT_DROPDOWN, COLOUR_GREY, WID_QES_COLOUR), SetMinimalSize(60, 12), SetToolTip(STR_EDIT_SIGN_TEXT_COLOUR_TOOLTIP),
+		EndContainer(),
+		NWidget(WWT_PANEL, COLOUR_GREY), SetFill(1, 1), EndContainer(),
 		NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, WID_QES_PREVIOUS), SetMinimalSize(11, 12), SetArrowWidgetTypeTip(AWV_DECREASE, STR_EDIT_SIGN_PREVIOUS_SIGN_TOOLTIP),
 		NWidget(WWT_PUSHARROWBTN, COLOUR_GREY, WID_QES_NEXT), SetMinimalSize(11, 12), SetArrowWidgetTypeTip(AWV_INCREASE, STR_EDIT_SIGN_NEXT_SIGN_TOOLTIP),
 	EndContainer(),
@@ -575,7 +628,7 @@ void HandleClickOnSign(const Sign *si)
 	if (!CompanyCanEditSign(si)) return;
 
 	if (_ctrl_pressed && (si->owner == _local_company || (si->owner == OWNER_DEITY && _game_mode == GM_EDITOR))) {
-		RenameSign(si->index, "");
+		RenameSign(si->index, "", INVALID_COLOUR);
 		return;
 	}
 
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 6427a1465e..fac0227625 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -1404,12 +1404,18 @@ static void ViewportAddSignStrings(DrawPixelInfo *dpi, const std::vector<const S
 	if (small) flags.Set(ViewportStringFlag::Small);
 
 	/* Signs placed by a game script don't have a frame. */
-	ViewportStringFlags deity_flags{flags};
+	ViewportStringFlags deity_flags{ flags };
+	deity_flags.Set(ViewportStringFlag::TextColour);
+
 	flags.Set(IsTransparencySet(TO_SIGNS) ? ViewportStringFlag::TransparentRect : ViewportStringFlag::ColourRect);
 
 	for (const Sign *si : signs) {
+		/* Workaround to make sure white is actually white. The string drawing logic changes all
+		 * colours that are not INVALID_COLOUR slightly, turning white into a light gray. */
+		const Colours deity_colour = si->text_colour == COLOUR_WHITE ? INVALID_COLOUR : si->text_colour;
+
 		std::string *str = ViewportAddString(dpi, &si->sign, (si->owner == OWNER_DEITY) ? deity_flags : flags,
-			(si->owner == OWNER_NONE) ? COLOUR_GREY : (si->owner == OWNER_DEITY ? INVALID_COLOUR : _company_colours[si->owner]));
+			(si->owner == OWNER_NONE) ? COLOUR_GREY : (si->owner == OWNER_DEITY ? deity_colour : _company_colours[si->owner]));
 		if (str == nullptr) continue;
 
 		*str = GetString(STR_SIGN_NAME, si->index);
diff --git a/src/widgets/sign_widget.h b/src/widgets/sign_widget.h
index e8ffa0c131..9e7c328dfa 100644
--- a/src/widgets/sign_widget.h
+++ b/src/widgets/sign_widget.h
@@ -22,15 +22,17 @@ enum SignListWidgets : WidgetID {
 
 /** Widgets of the #SignWindow class. */
 enum QueryEditSignWidgets : WidgetID {
-	WID_QES_CAPTION,  ///< Caption of the window.
-	WID_QES_LOCATION, ///< Scroll to sign location.
-	WID_QES_TEXT,     ///< Text of the query.
-	WID_QES_OK,       ///< OK button.
-	WID_QES_CANCEL,   ///< Cancel button.
-	WID_QES_DELETE,   ///< Delete button.
-	WID_QES_MOVE,     ///< Move Sign button.
-	WID_QES_PREVIOUS, ///< Previous button.
-	WID_QES_NEXT,     ///< Next button.
+	WID_QES_CAPTION,     ///< Caption of the window.
+	WID_QES_LOCATION,    ///< Scroll to sign location.
+	WID_QES_TEXT,        ///< Text of the query.
+	WID_QES_OK,          ///< OK button.
+	WID_QES_CANCEL,      ///< Cancel button.
+	WID_QES_DELETE,      ///< Delete button.
+	WID_QES_COLOUR_PANE, ///< Pane to show/hide the color dropdown.
+	WID_QES_COLOUR,      ///< Colour selection dropdown.
+	WID_QES_MOVE,        ///< Move Sign button.
+	WID_QES_PREVIOUS,    ///< Previous button.
+	WID_QES_NEXT,        ///< Next button.
 };
 
 #endif /* SIGN_WIDGET_H */