#767913

CSS

:root {
  --olive: #767913;
  --olive-rgb: 118 121 19;
  --olive-oklch: oklch(0.556 0.116 111.4);
}

.element {
  color: var(--olive);
  background-color: hsl(62 73% 27%);
  border-color: oklch(0.556 0.116 111.4);
}

Tailwind CSS v4

@theme {
  --color-olive: #767913;
  --color-olive-50: #f4f9d4;
  --color-olive-100: #e7edc1;
  --color-olive-200: #d4daa1;
  --color-olive-300: #b7be78;
  --color-olive-400: #a1a54f;
  --color-olive-500: #898d1c;
  --color-olive-600: #74771b;
  --color-olive-700: #5d5f16;
  --color-olive-800: #45450c;
  --color-olive-900: #303007;
  --color-olive-950: #1c1c00;
}

SCSS

$olive: #767913;
$olive-rgb: 118, 121, 19;
$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);
}