EditorGUIUtility.RGBToHSV  

static function RGBToHSV (rgbColor : Color, out H : float, out S : float, out V : float) : void

Parameters

Description

Convert a color from RGB to HSV color space.

All values are in the 0-1 range

See Also: HSVToRGB

// Simple script that shows the color info on 
// RGB (Red Green Blue) values and
// HSV (Hue Saturation Value) values.

class RGBHSVInfo extends Editor{
        
    @MenuItem("Examples/Color Info")
    static function CheckColor() {
        var h : float = 0;
        var s : float = 0;
        var v : float = 0;        
        var objColor : Color = Color.white;
    
        var obj = Selection.activeGameObject.renderer;
        if(!obj.renderer.material) {
            Debug.LogError("Selected Object doesnt have a material.");
            return;
        }
        objColor = obj.renderer.sharedMaterial.color;
        EditorGUIUtility.RGBToHSV(objColor,h,s,v);
        objColor = EditorGUIUtility.HSVToRGB(h,s,v);
        Debug.Log("RGB: " + objColor.r + "," + objColor.g + "," + objColor.b);
        Debug.Log("HSV: " + h + "," + s + "," + v);
    }
    
    @MenuItem("Examples/Color Info", true)
    static function ValidateCheckColor() {
        return Selection.activeGameObject != null;
    }
}