metamask-extension/ui/app/pages/swaps/loading-swaps-quotes/aggregator-logo.js

import React from 'react'
import PropTypes from 'prop-types'

// Inspired by https://stackoverflow.com/a/28056903/4727685
function hexToRGB(hex, alpha) {
  const r = parseInt(hex.slice(1, 3), 16)
  const g = parseInt(hex.slice(3, 5), 16)
  const b = parseInt(hex.slice(5, 7), 16)

  return `rgba(${r}, ${g}, ${b}, ${alpha})`
}

export default function AggregatorLogo({ icon, color }) {
  return (
    <div className="loading-swaps-quotes__logo">
      <div
        style={{
          background: color,
          boxShadow: `0px 4px 20px ${hexToRGB(color, 0.25)}`,
        }}
      >
        <img src={icon} alt="" />
      </div>
    </div>
  )
}

AggregatorLogo.propTypes = {
  icon: PropTypes.string.isRequired,
  color: PropTypes.string.isRequired,
}