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

[data-swatch="matt black"]:before { background-color:#202020}[data-swatch="matt white"]:before { background-color:#f5f5f5}[data-swatch="satin brass"]:before { background-color:#c4a565}[data-swatch="graphite nickel"]:before { background-color:#62615d}[data-swatch="brushed nickel / chrome plate"]:before { background-color:#bcbfc1}