Crystal Dark Red

CSS

:root {
  --crystal-dark-red: #6d2c32;
  --crystal-dark-red-rgb: 109 44 50;
  --crystal-dark-red-oklch: oklch(0.387 0.093 16.9);
}

.element {
  color: var(--crystal-dark-red);
  background-color: hsl(354 42% 30%);
  border-color: oklch(0.387 0.093 16.9);
}

Tailwind CSS v4

@theme {
  --color-crystal-dark-red: #6d2c32;
  --color-crystal-dark-red-50: #ffebeb;
  --color-crystal-dark-red-100: #ffdcdc;
  --color-crystal-dark-red-200: #fac5c5;
  --color-crystal-dark-red-300: #e3a5a5;
  --color-crystal-dark-red-400: #cf888b;
  --color-crystal-dark-red-500: #bc6c70;
  --color-crystal-dark-red-600: #9e5b5f;
  --color-crystal-dark-red-700: #7f494c;
  --color-crystal-dark-red-800: #5e3438;
  --color-crystal-dark-red-900: #422426;
  --color-crystal-dark-red-950: #2a1215;
}

SCSS

$crystal-dark-red: #6d2c32;
$crystal-dark-red-rgb: 109, 44, 50;
$crystal-dark-red-light: mix(#fff, $crystal-dark-red, 20%);
$crystal-dark-red-dark: mix(#000, $crystal-dark-red, 20%);

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