Pure Red

CSS

:root {
  --pure-red: #d22d1d;
  --pure-red-rgb: 210 45 29;
  --pure-red-oklch: oklch(0.563 0.203 30.1);
}

.element {
  color: var(--pure-red);
  background-color: hsl(5 76% 47%);
  border-color: oklch(0.563 0.203 30.1);
}

Tailwind CSS v4

@theme {
  --color-pure-red: #d22d1d;
  --color-pure-red-50: #ffe1d1;
  --color-pure-red-100: #ffcfbd;
  --color-pure-red-200: #ffb39d;
  --color-pure-red-300: #ff8c73;
  --color-pure-red-400: #ff6550;
  --color-pure-red-500: #ef3523;
  --color-pure-red-600: #c93020;
  --color-pure-red-700: #a22619;
  --color-pure-red-800: #791914;
  --color-pure-red-900: #56110d;
  --color-pure-red-950: #390202;
}

SCSS

$pure-red: #d22d1d;
$pure-red-rgb: 210, 45, 29;
$pure-red-light: mix(#fff, $pure-red, 20%);
$pure-red-dark: mix(#000, $pure-red, 20%);

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