#050E00

CSS

:root {
  --memorial-black: #050e00;
  --memorial-black-rgb: 5 14 0;
  --memorial-black-oklch: oklch(0.148 0.041 131.7);
}

.element {
  color: var(--memorial-black);
  background-color: hsl(99 100% 3%);
  border-color: oklch(0.148 0.041 131.7);
}

Tailwind CSS v4

@theme {
  --color-memorial-black: #050e00;
  --color-memorial-black-50: #f0f8ec;
  --color-memorial-black-100: #e2ebdd;
  --color-memorial-black-200: #cdd8c7;
  --color-memorial-black-300: #afbca7;
  --color-memorial-black-400: #96a48b;
  --color-memorial-black-500: #7c8c70;
  --color-memorial-black-600: #69775f;
  --color-memorial-black-700: #545f4c;
  --color-memorial-black-800: #3e4536;
  --color-memorial-black-900: #2a3025;
  --color-memorial-black-950: #181c14;
}

SCSS

$memorial-black: #050e00;
$memorial-black-rgb: 5, 14, 0;
$memorial-black-light: mix(#fff, $memorial-black, 20%);
$memorial-black-dark: mix(#000, $memorial-black, 20%);

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