"flatten" rgba with transparency by blending it with white

remove transparency

function hexify(color) {
  const values = color
    .replace(/rgba?\(/, '')
    .replace(/\)/, '')
    .replace(/[\s+]/g, '')
    .split(',')
    
  const a = parseFloat(values[3] || 1)
  const r = Math.round(a * parseInt(values[0]) + (1 - a) * 255)
  const g = Math.round(a * parseInt(values[1]) + (1 - a) * 255)
  const b = Math.round(a * parseInt(values[2]) + (1 - a) * 255)
  
  const hex = 
    ("0" + r.toString(16)).slice(-2) +
    ("0" + g.toString(16)).slice(-2) +
    ("0" + b.toString(16)).slice(-2)

return { hex: `#${hex}`, rgba: `rgba(${r}, ${g}, ${b}, 1)`}
}

var myHex = hexify('rgba(194, 226, 250, 0.8)'); // {hex: '#cee7fb', rgba: 'rgba(206, 231, 251, 1)'}