Orange Red

CSS

:root {
  --orange-red: #fe4401;
  --orange-red-rgb: 254 68 1;
  --orange-red-oklch: oklch(0.658 0.229 35.2);
}

.element {
  color: var(--orange-red);
  background-color: hsl(16 99% 50%);
  border-color: oklch(0.658 0.229 35.2);
}

Tailwind CSS v4

@theme {
  --color-orange-red: #fe4401;
  --color-orange-red-50: #ffdfc7;
  --color-orange-red-100: #ffcdb1;
  --color-orange-red-200: #ffaf8c;
  --color-orange-red-300: #ff865c;
  --color-orange-red-400: #ff5b2d;
  --color-orange-red-500: #f91900;
  --color-orange-red-600: #d21c00;
  --color-orange-red-700: #a91800;
  --color-orange-red-800: #7f0d00;
  --color-orange-red-900: #5a0900;
  --color-orange-red-950: #3c0000;
}

SCSS

$orange-red: #fe4401;
$orange-red-rgb: 254, 68, 1;
$orange-red-light: mix(#fff, $orange-red, 20%);
$orange-red-dark: mix(#000, $orange-red, 20%);

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