Black Sand

CSS

:root {
  --black-sand: #5b4e4b;
  --black-sand-rgb: 91 78 75;
  --black-sand-oklch: oklch(0.436 0.018 33.1);
}

.element {
  color: var(--black-sand);
  background-color: hsl(11 10% 33%);
  border-color: oklch(0.436 0.018 33.1);
}

Tailwind CSS v4

@theme {
  --color-black-sand: #5b4e4b;
  --color-black-sand-50: #faf3f2;
  --color-black-sand-100: #eee6e4;
  --color-black-sand-200: #dcd2cf;
  --color-black-sand-300: #c0b4b1;
  --color-black-sand-400: #a99b98;
  --color-black-sand-500: #92827e;
  --color-black-sand-600: #7b6e6b;
  --color-black-sand-700: #635856;
  --color-black-sand-800: #48403f;
  --color-black-sand-900: #322c2b;
  --color-black-sand-950: #1e1918;
}

SCSS

$black-sand: #5b4e4b;
$black-sand-rgb: 91, 78, 75;
$black-sand-light: mix(#fff, $black-sand, 20%);
$black-sand-dark: mix(#000, $black-sand, 20%);

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