diff --git a/colors.lua b/colors.lua
index 0faeb43..bcd28ae 100644
--- a/colors.lua
+++ b/colors.lua
@@ -12,6 +12,10 @@ local colors = {}
 --------------------------------------------------------------------------------
 -- Conversion
 
+colors.rgb255_to_rgb1 = function (color)
+    return { color[1]/255, color[2]/255, color[3]/255, (color[4] or 255)/255 }
+end
+
 colors.rgb_to_hsl = function (color)
 	-- Error check
 	assert(type(color) == 'table' and type(color[1]) == 'number' and type(color[2]) == 'number' and type(color[3]) == 'number')
@@ -79,6 +83,10 @@ colors.hsl_to_rgb = function (color)
 	return { r, g, b }
 end
 
+colors.hsl_to_rgb1 = function (...)
+    return colors.rgb255_to_rgb1(colors.hsl_to_rgb(...))
+end
+
 --------------------------------------------------------------------------------
 -- Interpolation
 
@@ -86,7 +94,7 @@ colors.interpolate_rgb = function (c1, c2, t)
 	assert(type(c1) == 'table' and type(c1[1]) == 'number' and type(c1[2]) == 'number' and type(c1[3]) == 'number' and (type(c1[4]) == 'number' or c1[4] == nil))
 	assert(type(c2) == 'table' and type(c2[1]) == 'number' and type(c2[2]) == 'number' and type(c2[3]) == 'number' and (type(c2[4]) == 'number' or c2[4] == nil))
 	assert(type(t) == 'number')
-	--	
+	--
 	local alpha = nil
 	if c1[4] or c2[4] then  alpha = (c1[4] or 255) + ((c2[4] or 255)-(c1[4] or 255))*t  end
 	return { c1[1]+(c2[1]-c1[1])*t, c1[2]+(c2[2]-c1[2])*t, c1[3]+(c2[3]-c1[3])*t, alpha }
@@ -151,3 +159,4 @@ end
 --------------------------------------------------------------------------------
 
 return colors
+
diff --git a/init.lua b/init.lua
index 86fc208..4a6216b 100644
--- a/init.lua
+++ b/init.lua
@@ -1 +1,2 @@
-return require 'colors.colors'
+
+return require ((...) .. '.colors')