#7A7A1B

CSS

:root {
  --olive: #7a7a1b;
  --olive-rgb: 122 122 27;
  --olive-oklch: oklch(0.562 0.112 109.5);
}

.element {
  color: var(--olive);
  background-color: hsl(60 64% 29%);
  border-color: oklch(0.562 0.112 109.5);
}

Tailwind CSS v4

@theme {
  --color-olive: #7a7a1b;
  --color-olive-50: #f6f9d4;
  --color-olive-100: #e8ecc1;
  --color-olive-200: #d5daa2;
  --color-olive-300: #b9bd79;
  --color-olive-400: #a3a451;
  --color-olive-500: #8c8c21;
  --color-olive-600: #76761f;
  --color-olive-700: #5f5f19;
  --color-olive-800: #47450e;
  --color-olive-900: #313009;
  --color-olive-950: #1d1c00;
}

SCSS

$olive: #7a7a1b;
$olive-rgb: 122, 122, 27;
$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);
}