#617414

CSS

:root {
  --topiary-green: #617414;
  --topiary-green-rgb: 97 116 20;
  --topiary-green-oklch: oklch(0.525 0.118 120.8);
}

.element {
  color: var(--topiary-green);
  background-color: hsl(72 71% 27%);
  border-color: oklch(0.525 0.118 120.8);
}

Tailwind CSS v4

@theme {
  --color-topiary-green: #617414;
  --color-topiary-green-50: #effbd6;
  --color-topiary-green-100: #e0efc4;
  --color-topiary-green-200: #cbdda5;
  --color-topiary-green-300: #acc27d;
  --color-topiary-green-400: #94a956;
  --color-topiary-green-500: #7b912a;
  --color-topiary-green-600: #687b26;
  --color-topiary-green-700: #53621e;
  --color-topiary-green-800: #3e4812;
  --color-topiary-green-900: #2b320b;
  --color-topiary-green-950: #181e01;
}

SCSS

$topiary-green: #617414;
$topiary-green-rgb: 97, 116, 20;
$topiary-green-light: mix(#fff, $topiary-green, 20%);
$topiary-green-dark: mix(#000, $topiary-green, 20%);

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