[data-swatch]::before {
  background-color: rgba(var(--text-color) / 0.08);
}

[data-swatch="black"]:before { background-color:#000000}[data-swatch="red"]:before { background-color:#FF0000}[data-swatch="white"]:before { background-color:#FFFFFF}[data-swatch="brown"]:before { background-color:#964B00}