diff --git a/src/openrct2/interface/Colour.cpp b/src/openrct2/interface/Colour.cpp
index 0f13bbc824..2f15032676 100644
--- a/src/openrct2/interface/Colour.cpp
+++ b/src/openrct2/interface/Colour.cpp
@@ -9,12 +9,12 @@
 
 #include "Colour.h"
 
+#include "../core/EnumMap.hpp"
 #include "../drawing/Drawing.h"
 #include "../sprites.h"
 
 #include <algorithm>
 #include <cmath>
-#include <unordered_map>
 
 rct_colour_map ColourMapA[COLOUR_COUNT] = {};
 
@@ -60,45 +60,47 @@ void colours_init_maps()
 
 namespace Colour
 {
+    static const EnumMap<colour_t> LookupTable{
+        { "black", COLOUR_BLACK },
+        { "grey", COLOUR_GREY },
+        { "white", COLOUR_WHITE },
+        { "dark_purple", COLOUR_DARK_PURPLE },
+        { "light_purple", COLOUR_LIGHT_PURPLE },
+        { "bright_purple", COLOUR_BRIGHT_PURPLE },
+        { "dark_blue", COLOUR_DARK_BLUE },
+        { "light_blue", COLOUR_LIGHT_BLUE },
+        { "icy_blue", COLOUR_ICY_BLUE },
+        { "teal", COLOUR_TEAL },
+        { "aquamarine", COLOUR_AQUAMARINE },
+        { "saturated_green", COLOUR_SATURATED_GREEN },
+        { "dark_green", COLOUR_DARK_GREEN },
+        { "moss_green", COLOUR_MOSS_GREEN },
+        { "bright_green", COLOUR_BRIGHT_GREEN },
+        { "olive_green", COLOUR_OLIVE_GREEN },
+        { "dark_olive_green", COLOUR_DARK_OLIVE_GREEN },
+        { "bright_yellow", COLOUR_BRIGHT_YELLOW },
+        { "yellow", COLOUR_YELLOW },
+        { "dark_yellow", COLOUR_DARK_YELLOW },
+        { "light_orange", COLOUR_LIGHT_ORANGE },
+        { "dark_orange", COLOUR_DARK_ORANGE },
+        { "light_brown", COLOUR_LIGHT_BROWN },
+        { "saturated_brown", COLOUR_SATURATED_BROWN },
+        { "dark_brown", COLOUR_DARK_BROWN },
+        { "salmon_pink", COLOUR_SALMON_PINK },
+        { "bordeaux_red", COLOUR_BORDEAUX_RED },
+        { "saturated_red", COLOUR_SATURATED_RED },
+        { "bright_red", COLOUR_BRIGHT_RED },
+        { "dark_pink", COLOUR_DARK_PINK },
+        { "bright_pink", COLOUR_BRIGHT_PINK },
+        { "light_pink", COLOUR_LIGHT_PINK },
+    };
+
     colour_t FromString(std::string_view s, colour_t defaultValue)
     {
-        static const std::unordered_map<std::string_view, colour_t> LookupTable{
-            { "black", COLOUR_BLACK },
-            { "grey", COLOUR_GREY },
-            { "white", COLOUR_WHITE },
-            { "dark_purple", COLOUR_DARK_PURPLE },
-            { "light_purple", COLOUR_LIGHT_PURPLE },
-            { "bright_purple", COLOUR_BRIGHT_PURPLE },
-            { "dark_blue", COLOUR_DARK_BLUE },
-            { "light_blue", COLOUR_LIGHT_BLUE },
-            { "icy_blue", COLOUR_ICY_BLUE },
-            { "teal", COLOUR_TEAL },
-            { "aquamarine", COLOUR_AQUAMARINE },
-            { "saturated_green", COLOUR_SATURATED_GREEN },
-            { "dark_green", COLOUR_DARK_GREEN },
-            { "moss_green", COLOUR_MOSS_GREEN },
-            { "bright_green", COLOUR_BRIGHT_GREEN },
-            { "olive_green", COLOUR_OLIVE_GREEN },
-            { "dark_olive_green", COLOUR_DARK_OLIVE_GREEN },
-            { "bright_yellow", COLOUR_BRIGHT_YELLOW },
-            { "yellow", COLOUR_YELLOW },
-            { "dark_yellow", COLOUR_DARK_YELLOW },
-            { "light_orange", COLOUR_LIGHT_ORANGE },
-            { "dark_orange", COLOUR_DARK_ORANGE },
-            { "light_brown", COLOUR_LIGHT_BROWN },
-            { "saturated_brown", COLOUR_SATURATED_BROWN },
-            { "dark_brown", COLOUR_DARK_BROWN },
-            { "salmon_pink", COLOUR_SALMON_PINK },
-            { "bordeaux_red", COLOUR_BORDEAUX_RED },
-            { "saturated_red", COLOUR_SATURATED_RED },
-            { "bright_red", COLOUR_BRIGHT_RED },
-            { "dark_pink", COLOUR_DARK_PINK },
-            { "bright_pink", COLOUR_BRIGHT_PINK },
-            { "light_pink", COLOUR_LIGHT_PINK },
-        };
         auto result = LookupTable.find(s);
         return (result != LookupTable.end()) ? result->second : defaultValue;
     }
+
 } // namespace Colour
 
 #ifndef NO_TTF