export interface Rgba {
  r: number;
  g: number;
  b: number;
  a: number;
}
export declare function parseColor(value: string): Rgba | null;
export declare function blend(fg: Rgba, bg: Rgba): Rgba;
export declare function rgbDistance(a: Rgba, b: Rgba): number;
export declare function toHex(color: Rgba): string;