#787B24

CSS

:root {
  --olive: #787b24;
  --olive-rgb: 120 123 36;
  --olive-oklch: oklch(0.563 0.108 111.3);
}

.element {
  color: var(--olive);
  background-color: hsl(62 55% 31%);
  border-color: oklch(0.563 0.108 111.3);
}

Tailwind CSS v4

@theme {
  --color-olive: #787b24;
  --color-olive-50: #f5f9d6;
  --color-olive-100: #e7ecc4;
  --color-olive-200: #d4daa5;
  --color-olive-300: #b7be7d;
  --color-olive-400: #a1a556;
  --color-olive-500: #898c2a;
  --color-olive-600: #747726;
  --color-olive-700: #5d5f1e;
  --color-olive-800: #454513;
  --color-olive-900: #30300c;
  --color-olive-950: #1c1c01;
}

SCSS

$olive: #787b24;
$olive-rgb: 120, 123, 36;
$olive-light: mix(#fff, $olive, 20%);
$olive-dark: mix(#000, $olive, 20%);

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