import { hexToTriplet } from './hexToRgb'

export function getContrastText (color: string) {
  const [r, g, b] = hexToTriplet(color)

  // calculate contrast against grayscale
  const contrast = (Math.round(r * 299) + Math.round(g * 587) + Math.round(b * 114)) / 1000

  return contrast >= 128 ? 'black' : 'white'
}