Returns white when a color is dark and black when a color is light. 🎨

yarn add yiq

# If you're using NPM:
# npm install yiq --save

Just call the yiq function after importing it:

import yiq from 'yiq'

console.log(yiq('#fff')) // #000
console.log(yiq('#000')) // #fff

yiq — Returns a light color when a color is dark and black color when a color is light.

function colorYiq(
  colorHex: string,
  options?: {
    white: string
    black: string
  }
): string

The second argument (options) should be used to define the colors that the function will return:

yiq('#fff', {
  white: '#f0f0f0',
  dark: '#333'
}) // #333

The default options are:

• options.white: #fff;
• options.black: #000.

lffg and contributors.

MIT License, see the included MIT file.