Sponge

CSS

:root {
  --sponge: #a0956f;
  --sponge-rgb: 160 149 111;
  --sponge-oklch: oklch(0.67 0.054 93.9);
}

.element {
  color: var(--sponge);
  background-color: hsl(47 21% 53%);
  border-color: oklch(0.67 0.054 93.9);
}

Tailwind CSS v4

@theme {
  --color-sponge: #a0956f;
  --color-sponge-50: #faf5e4;
  --color-sponge-100: #ede8d4;
  --color-sponge-200: #dbd5bb;
  --color-sponge-300: #bfb899;
  --color-sponge-400: #a99e7a;
  --color-sponge-500: #92865c;
  --color-sponge-600: #7b714f;
  --color-sponge-700: #635b3f;
  --color-sponge-800: #49422c;
  --color-sponge-900: #332e1e;
  --color-sponge-950: #1e1a0e;
}

SCSS

$sponge: #a0956f;
$sponge-rgb: 160, 149, 111;
$sponge-light: mix(#fff, $sponge, 20%);
$sponge-dark: mix(#000, $sponge, 20%);

.element {
  color: $sponge;
  box-shadow: 0 0 0 2px rgba($sponge, 0.35);
}