Amaranth Red

CSS

:root {
  --amaranth-red: #d3212d;
  --amaranth-red-rgb: 211 33 45;
  --amaranth-red-oklch: oklch(0.558 0.209 24.8);
}

.element {
  color: var(--amaranth-red);
  background-color: hsl(356 73% 48%);
  border-color: oklch(0.558 0.209 24.8);
}

Tailwind CSS v4

@theme {
  --color-amaranth-red: #d3212d;
  --color-amaranth-red-50: #ffdfd5;
  --color-amaranth-red-100: #ffcdc2;
  --color-amaranth-red-200: #ffb0a4;
  --color-amaranth-red-300: #ff887c;
  --color-amaranth-red-400: #ff5f5c;
  --color-amaranth-red-500: #f22a36;
  --color-amaranth-red-600: #cc282f;
  --color-amaranth-red-700: #a42025;
  --color-amaranth-red-800: #7b141d;
  --color-amaranth-red-900: #570d13;
  --color-amaranth-red-950: #3a0005;
}

SCSS

$amaranth-red: #d3212d;
$amaranth-red-rgb: 211, 33, 45;
$amaranth-red-light: mix(#fff, $amaranth-red, 20%);
$amaranth-red-dark: mix(#000, $amaranth-red, 20%);

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