Added OKLCH color space

Color.go

@@ -5,18 +5,18 @@ import (
 	"io"
 )
 
-// Component is a type definition for the data type of a single color component.
-type Component float32
+// Value is a type definition for the data type of a single color component.
+type Value = float64
 
 // Color represents an RGB color.
 type Color struct {
-	R Component
-	G Component
-	B Component
+	R Value
+	G Value
+	B Value
 }
 
 // RGB creates a new color with red, green and blue values in the range of 0.0 to 1.0.
-func RGB(r Component, g Component, b Component) Color {
+func RGB(r Value, g Value, b Value) Color {
 	return Color{r, g, b}
 }