[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [RgbaColorPacker](./rc-js-util.rgbacolorpacker.md) > [packColor](./rc-js-util.rgbacolorpacker.packcolor.md) ## RgbaColorPacker.packColor() method **Signature:** ```typescript static packColor(r: number, g: number, b: number, a: number): number; ``` ## Parameters

Parameter	Type	Description
r	number	Red 0 - 255.
g	number	Green 0 - 255.
b	number	Blue 0 - 255.
a	number	Alpha 0 - 255.

**Returns:** number