Rocket Science

CSS

:root {
  --rocket-science: #ff3311;
  --rocket-science-rgb: 255 51 17;
  --rocket-science-oklch: oklch(0.647 0.24 31.6);
}

.element {
  color: var(--rocket-science);
  background-color: hsl(9 100% 53%);
  border-color: oklch(0.647 0.24 31.6);
}

Tailwind CSS v4

@theme {
  --color-rocket-science: #ff3311;
  --color-rocket-science-50: #ffddc8;
  --color-rocket-science-100: #ffcab3;
  --color-rocket-science-200: #ffac8f;
  --color-rocket-science-300: #ff8160;
  --color-rocket-science-400: #ff5235;
  --color-rocket-science-500: #fe0000;
  --color-rocket-science-600: #d70000;
  --color-rocket-science-700: #ad0500;
  --color-rocket-science-800: #820000;
  --color-rocket-science-900: #5c0301;
  --color-rocket-science-950: #3e0000;
}

SCSS

$rocket-science: #ff3311;
$rocket-science-rgb: 255, 51, 17;
$rocket-science-light: mix(#fff, $rocket-science, 20%);
$rocket-science-dark: mix(#000, $rocket-science, 20%);

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