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

[data-swatch="white"]:before { background-color:#ffffff}[data-swatch="black"]:before { background-color:#464646}[data-swatch="red"]:before { background-color:#e60000}[data-swatch="blue"]:before { background-color:#0066ff}[data-swatch="yellow"]:before { background-color:#f5ce00}