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

[data-swatch="blue"]:before { background-color:#0d53a9}[data-swatch="green"]:before { background-color:#07b375}[data-swatch="black"]:before { background-color:#2e2f2f}[data-swatch="red"]:before { background-color:#dd3630}[data-swatch="teal"]:before { background-color:#079fb4}