#857714

CSS

:root {
  --olive: #857714;
  --olive-rgb: 133 119 20;
  --olive-oklch: oklch(0.565 0.111 100.5);
}

.element {
  color: var(--olive);
  background-color: hsl(53 74% 30%);
  border-color: oklch(0.565 0.111 100.5);
}

Tailwind CSS v4

@theme {
  --color-olive: #857714;
  --color-olive-50: #fbf7d3;
  --color-olive-100: #eeeabf;
  --color-olive-200: #ddd79f;
  --color-olive-300: #c2ba76;
  --color-olive-400: #ada04d;
  --color-olive-500: #978717;
  --color-olive-600: #807318;
  --color-olive-700: #665c14;
  --color-olive-800: #4c420a;
  --color-olive-900: #352e07;
  --color-olive-950: #201a00;
}

SCSS

$olive: #857714;
$olive-rgb: 133, 119, 20;
$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);
}