#717B16

CSS

:root {
  --topiary-green: #717b16;
  --topiary-green-rgb: 113 123 22;
  --topiary-green-oklch: oklch(0.556 0.119 115.5);
}

.element {
  color: var(--topiary-green);
  background-color: hsl(66 70% 28%);
  border-color: oklch(0.556 0.119 115.5);
}

Tailwind CSS v4

@theme {
  --color-topiary-green: #717b16;
  --color-topiary-green-50: #f2fad4;
  --color-topiary-green-100: #e4eec1;
  --color-topiary-green-200: #d0dca2;
  --color-topiary-green-300: #b2c079;
  --color-topiary-green-400: #9ca750;
  --color-topiary-green-500: #838f1f;
  --color-topiary-green-600: #6f791d;
  --color-topiary-green-700: #596117;
  --color-topiary-green-800: #42460c;
  --color-topiary-green-900: #2e3108;
  --color-topiary-green-950: #1b1d00;
}

SCSS

$topiary-green: #717b16;
$topiary-green-rgb: 113, 123, 22;
$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);
}