@antv/g2/src/utils/color.ts

the Grammar of Graphics in Javascript

import { parseColor } from '@antv/g';

export type Color = {
  r: number;
  g: number;
  b: number;
};

export function parseToRGB(c: string | Color): Color {
  if (typeof c === 'object') return c;
  return parseColor(c);
}