Piercing Red

CSS

:root {
  --piercing-red: #dd1122;
  --piercing-red-rgb: 221 17 34;
  --piercing-red-oklch: oklch(0.569 0.225 26.2);
}

.element {
  color: var(--piercing-red);
  background-color: hsl(355 86% 47%);
  border-color: oklch(0.569 0.225 26.2);
}

Tailwind CSS v4

@theme {
  --color-piercing-red: #dd1122;
  --color-piercing-red-50: #ffddd1;
  --color-piercing-red-100: #ffcbbe;
  --color-piercing-red-200: #ffad9d;
  --color-piercing-red-300: #ff8373;
  --color-piercing-red-400: #ff5852;
  --color-piercing-red-500: #f80e26;
  --color-piercing-red-600: #d21622;
  --color-piercing-red-700: #a9141b;
  --color-piercing-red-800: #7e0a16;
  --color-piercing-red-900: #5a070e;
  --color-piercing-red-950: #3c0003;
}

SCSS

$piercing-red: #dd1122;
$piercing-red-rgb: 221, 17, 34;
$piercing-red-light: mix(#fff, $piercing-red, 20%);
$piercing-red-dark: mix(#000, $piercing-red, 20%);

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