#19190A

CSS

:root {
  --memorial-black: #19190a;
  --memorial-black-rgb: 25 25 10;
  --memorial-black-oklch: oklch(0.209 0.027 108.5);
}

.element {
  color: var(--memorial-black);
  background-color: hsl(60 43% 7%);
  border-color: oklch(0.209 0.027 108.5);
}

Tailwind CSS v4

@theme {
  --color-memorial-black: #19190a;
  --color-memorial-black-50: #f5f6ed;
  --color-memorial-black-100: #e8e9df;
  --color-memorial-black-200: #d4d5c9;
  --color-memorial-black-300: #b8b9a9;
  --color-memorial-black-400: #9fa08e;
  --color-memorial-black-500: #878874;
  --color-memorial-black-600: #737362;
  --color-memorial-black-700: #5c5c4e;
  --color-memorial-black-800: #434338;
  --color-memorial-black-900: #2e2e27;
  --color-memorial-black-950: #1b1b15;
}

SCSS

$memorial-black: #19190a;
$memorial-black-rgb: 25, 25, 10;
$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);
}