color: ColorParam can be a number

types/color/color-tests.ts

@@ -3,6 +3,7 @@ import * as Color from "color"
 var color: Color.Color = Color("white")
 var colorOther: Color.Color = Color("black")
 var colorRGB: Color.Color = Color({ r : 0, g : 0, b : 0 }, "rgb")
+var colorInt: Color.Color = Color(0x000000)
 
 var hex: string = color.hex()
 var percent: string = color.percentString()

types/color/index.d.ts

@@ -5,7 +5,7 @@
 
 declare namespace Color {
 
-    type ColorParam = string | { [param: string]: number };
+    type ColorParam = string | { [param: string]: number } | number;
 
     type ColorModel = "rgb" | "hsl" | "hsv" | "hwb" | "hcg" | "cmyk" | "xyz" | "lab" | "hex" | "gray" | "keyword";