#804F60

CSS

:root {
  --nocturne-red: #804f60;
  --nocturne-red-rgb: 128 79 96;
  --nocturne-red-oklch: oklch(0.489 0.07 357.6);
}

.element {
  color: var(--nocturne-red);
  background-color: hsl(339 24% 41%);
  border-color: oklch(0.489 0.07 357.6);
}

Tailwind CSS v4

@theme {
  --color-nocturne-red: #804f60;
  --color-nocturne-red-50: #ffedf4;
  --color-nocturne-red-100: #fddfe7;
  --color-nocturne-red-200: #efc8d3;
  --color-nocturne-red-300: #d6a9b6;
  --color-nocturne-red-400: #c18e9e;
  --color-nocturne-red-500: #ac7386;
  --color-nocturne-red-600: #916172;
  --color-nocturne-red-700: #754e5b;
  --color-nocturne-red-800: #563843;
  --color-nocturne-red-900: #3c262e;
  --color-nocturne-red-950: #26151b;
}

SCSS

$nocturne-red: #804f60;
$nocturne-red-rgb: 128, 79, 96;
$nocturne-red-light: mix(#fff, $nocturne-red, 20%);
$nocturne-red-dark: mix(#000, $nocturne-red, 20%);

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