Mystic Red

CSS

:root {
  --mystic-red: #ff5500;
  --mystic-red-rgb: 255 85 0;
  --mystic-red-oklch: oklch(0.676 0.217 38.8);
}

.element {
  color: var(--mystic-red);
  background-color: hsl(20 100% 50%);
  border-color: oklch(0.676 0.217 38.8);
}

Tailwind CSS v4

@theme {
  --color-mystic-red: #ff5500;
  --color-mystic-red-50: #ffe1c6;
  --color-mystic-red-100: #ffd0b0;
  --color-mystic-red-200: #ffb38a;
  --color-mystic-red-300: #ff8c59;
  --color-mystic-red-400: #ff6326;
  --color-mystic-red-500: #f32f00;
  --color-mystic-red-600: #cd2c00;
  --color-mystic-red-700: #a52300;
  --color-mystic-red-800: #7c1600;
  --color-mystic-red-900: #580f00;
  --color-mystic-red-950: #3b0000;
}

SCSS

$mystic-red: #ff5500;
$mystic-red-rgb: 255, 85, 0;
$mystic-red-light: mix(#fff, $mystic-red, 20%);
$mystic-red-dark: mix(#000, $mystic-red, 20%);

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