#DB2F44

CSS

:root {
  --crossing-the-line: #db2f44;
  --crossing-the-line-rgb: 219 47 68;
  --crossing-the-line-oklch: oklch(0.585 0.206 20.5);
}

.element {
  color: var(--crossing-the-line);
  background-color: hsl(353 70% 52%);
  border-color: oklch(0.585 0.206 20.5);
}

Tailwind CSS v4

@theme {
  --color-crossing-the-line: #db2f44;
  --color-crossing-the-line-50: #ffdfda;
  --color-crossing-the-line-100: #ffcdc8;
  --color-crossing-the-line-200: #ffb0ac;
  --color-crossing-the-line-300: #ff8886;
  --color-crossing-the-line-400: #ff6069;
  --color-crossing-the-line-500: #f02c47;
  --color-crossing-the-line-600: #ca293d;
  --color-crossing-the-line-700: #a32131;
  --color-crossing-the-line-800: #7a1525;
  --color-crossing-the-line-900: #560e19;
  --color-crossing-the-line-950: #39000a;
}

SCSS

$crossing-the-line: #db2f44;
$crossing-the-line-rgb: 219, 47, 68;
$crossing-the-line-light: mix(#fff, $crossing-the-line, 20%);
$crossing-the-line-dark: mix(#000, $crossing-the-line, 20%);

.element {
  color: $crossing-the-line;
  box-shadow: 0 0 0 2px rgba($crossing-the-line, 0.35);
}