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

[data-swatch="black"]:before { background-color:#050505}[data-swatch="racer green"]:before { background-color:#233F47}[data-swatch="brick"]:before { background-color:#9D4A3E}[data-swatch="red"]:before { background-color:#B51C21}