#D71134

CSS

:root {
  --incubation-red: #d71134;
  --incubation-red-rgb: 215 17 52;
  --incubation-red-oklch: oklch(0.56 0.219 21.8);
}

.element {
  color: var(--incubation-red);
  background-color: hsl(349 85% 45%);
  border-color: oklch(0.56 0.219 21.8);
}

Tailwind CSS v4

@theme {
  --color-incubation-red: #d71134;
  --color-incubation-red-50: #ffddd7;
  --color-incubation-red-100: #ffcbc5;
  --color-incubation-red-200: #ffada7;
  --color-incubation-red-300: #ff847f;
  --color-incubation-red-400: #ff5961;
  --color-incubation-red-500: #f6193e;
  --color-incubation-red-600: #cf1c35;
  --color-incubation-red-700: #a7172a;
  --color-incubation-red-800: #7d0d21;
  --color-incubation-red-900: #580915;
  --color-incubation-red-950: #3b0007;
}

SCSS

$incubation-red: #d71134;
$incubation-red-rgb: 215, 17, 52;
$incubation-red-light: mix(#fff, $incubation-red, 20%);
$incubation-red-dark: mix(#000, $incubation-red, 20%);

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