diff --git a/code/game/objects/items/crayons.dm b/code/game/objects/items/crayons.dm
index 2e80325d9f..49f8a90901 100644
--- a/code/game/objects/items/crayons.dm
+++ b/code/game/objects/items/crayons.dm
@@ -710,7 +710,8 @@
 
 	if(isobj(target))
 		if(actually_paints)
-			if(color_hex2num(paint_color) < 350 && !istype(target, /obj/structure/window) && !istype(target, /obj/effect/decal/cleanable/crayon)) //Colors too dark are rejected
+			var/list/hsl = rgb2hsl(hex2num(copytext(paint_color,2,4)),hex2num(copytext(paint_color,4,6)),hex2num(copytext(paint_color,6,8)))
+			if(hsl[3] < 0.25 && !istype(target, /obj/structure/window) && !istype(target, /obj/effect/decal/cleanable/crayon)) //Colors too dark are rejected
 				to_chat(usr, "<span class='warning'>A color that dark on an object like this? Surely not...</span>")
 				return FALSE