River Rouge

CSS

:root {
  --river-rouge: #ec9b9d;
  --river-rouge-rgb: 236 155 157;
  --river-rouge-oklch: oklch(0.771 0.097 17.9);
}

.element {
  color: var(--river-rouge);
  background-color: hsl(359 68% 77%);
  border-color: oklch(0.771 0.097 17.9);
}

Tailwind CSS v4

@theme {
  --color-river-rouge: #ec9b9d;
  --color-river-rouge-50: #ffebea;
  --color-river-rouge-100: #ffdcda;
  --color-river-rouge-200: #fbc4c3;
  --color-river-rouge-300: #e5a4a3;
  --color-river-rouge-400: #d28789;
  --color-river-rouge-500: #be6a6e;
  --color-river-rouge-600: #a05a5d;
  --color-river-rouge-700: #81484a;
  --color-river-rouge-800: #603437;
  --color-river-rouge-900: #432325;
  --color-river-rouge-950: #2b1214;
}

SCSS

$river-rouge: #ec9b9d;
$river-rouge-rgb: 236, 155, 157;
$river-rouge-light: mix(#fff, $river-rouge, 20%);
$river-rouge-dark: mix(#000, $river-rouge, 20%);

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