#7D8F00

CSS

:root {
  --snakes-in-the-grass: #7d8f00;
  --snakes-in-the-grass-rgb: 125 143 0;
  --snakes-in-the-grass-oklch: oklch(0.614 0.143 118.2);
}

.element {
  color: var(--snakes-in-the-grass);
  background-color: hsl(68 100% 28%);
  border-color: oklch(0.614 0.143 118.2);
}

Tailwind CSS v4

@theme {
  --color-snakes-in-the-grass: #7d8f00;
  --color-snakes-in-the-grass-50: #effcce;
  --color-snakes-in-the-grass-100: #e1f0ba;
  --color-snakes-in-the-grass-200: #ccde98;
  --color-snakes-in-the-grass-300: #aec26c;
  --color-snakes-in-the-grass-400: #97a93b;
  --color-snakes-in-the-grass-500: #7e9200;
  --color-snakes-in-the-grass-600: #6b7b00;
  --color-snakes-in-the-grass-700: #556300;
  --color-snakes-in-the-grass-800: #404800;
  --color-snakes-in-the-grass-900: #2c3200;
  --color-snakes-in-the-grass-950: #191e00;
}

SCSS

$snakes-in-the-grass: #7d8f00;
$snakes-in-the-grass-rgb: 125, 143, 0;
$snakes-in-the-grass-light: mix(#fff, $snakes-in-the-grass, 20%);
$snakes-in-the-grass-dark: mix(#000, $snakes-in-the-grass, 20%);

.element {
  color: $snakes-in-the-grass;
  box-shadow: 0 0 0 2px rgba($snakes-in-the-grass, 0.35);
}