Red River

CSS

:root {
  --red-river: #b95543;
  --red-river-rgb: 185 85 67;
  --red-river-oklch: oklch(0.571 0.133 31.9);
}

.element {
  color: var(--red-river);
  background-color: hsl(9 47% 49%);
  border-color: oklch(0.571 0.133 31.9);
}

Tailwind CSS v4

@theme {
  --color-red-river: #b95543;
  --color-red-river-50: #ffe8dc;
  --color-red-river-100: #ffd9cb;
  --color-red-river-200: #ffc0af;
  --color-red-river-300: #f39e8a;
  --color-red-river-400: #e27f6c;
  --color-red-river-500: #cf5f4b;
  --color-red-river-600: #af5140;
  --color-red-river-700: #8d4133;
  --color-red-river-800: #692e25;
  --color-red-river-900: #4a1f19;
  --color-red-river-950: #300e0a;
}

SCSS

$red-river: #b95543;
$red-river-rgb: 185, 85, 67;
$red-river-light: mix(#fff, $red-river, 20%);
$red-river-dark: mix(#000, $red-river, 20%);

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