Reddish Black

CSS

:root {
  --reddish-black: #433635;
  --reddish-black-rgb: 67 54 53;
  --reddish-black-oklch: oklch(0.347 0.019 23.3);
}

.element {
  color: var(--reddish-black);
  background-color: hsl(4 12% 24%);
  border-color: oklch(0.347 0.019 23.3);
}

Tailwind CSS v4

@theme {
  --color-reddish-black: #433635;
  --color-reddish-black-50: #faf3f2;
  --color-reddish-black-100: #eee6e5;
  --color-reddish-black-200: #dcd1d0;
  --color-reddish-black-300: #c1b4b2;
  --color-reddish-black-400: #a99a99;
  --color-reddish-black-500: #928280;
  --color-reddish-black-600: #7c6e6d;
  --color-reddish-black-700: #635857;
  --color-reddish-black-800: #49403f;
  --color-reddish-black-900: #322c2c;
  --color-reddish-black-950: #1e1919;
}

SCSS

$reddish-black: #433635;
$reddish-black-rgb: 67, 54, 53;
$reddish-black-light: mix(#fff, $reddish-black, 20%);
$reddish-black-dark: mix(#000, $reddish-black, 20%);

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