#0E1A19

CSS

:root {
  --black-stallion: #0e1a19;
  --black-stallion-rgb: 14 26 25;
  --black-stallion-oklch: oklch(0.206 0.017 189.3);
}

.element {
  color: var(--black-stallion);
  background-color: hsl(175 30% 8%);
  border-color: oklch(0.206 0.017 189.3);
}

Tailwind CSS v4

@theme {
  --color-black-stallion: #0e1a19;
  --color-black-stallion-50: #f0f7f6;
  --color-black-stallion-100: #e2eae9;
  --color-black-stallion-200: #ccd7d6;
  --color-black-stallion-300: #aebab9;
  --color-black-stallion-400: #94a2a0;
  --color-black-stallion-500: #7a8a88;
  --color-black-stallion-600: #677573;
  --color-black-stallion-700: #525d5c;
  --color-black-stallion-800: #3c4443;
  --color-black-stallion-900: #292f2e;
  --color-black-stallion-950: #171c1b;
}

SCSS

$black-stallion: #0e1a19;
$black-stallion-rgb: 14, 26, 25;
$black-stallion-light: mix(#fff, $black-stallion, 20%);
$black-stallion-dark: mix(#000, $black-stallion, 20%);

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