@chayns/colors/es/converter/hex/rgb255ToHex.js

JavaScript utility functions for the calculation of colors for chayns

import { isNumber, isRgb255 } from '../../utils/is';

function componentToHex(c) {
  var hex = Math.round(c).toString(16);
  return hex.length === 1 ? "0".concat(hex) : hex;
}

export default function rgb255ToHex(rgb) {
  if (!isRgb255(rgb)) {
    return null;
  }

  var r = Math.round(rgb.r);
  var g = Math.round(rgb.g);
  var b = Math.round(rgb.b);

  if ('a' in rgb) {
    var a = Math.round(rgb.a * 255);

    if (isNumber(rgb.a)) {
      return "#".concat(componentToHex(r)).concat(componentToHex(g)).concat(componentToHex(b)).concat(componentToHex(a));
    }
  }

  return "#".concat(componentToHex(r)).concat(componentToHex(g)).concat(componentToHex(b));
}
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