#99A149

CSS

:root {
  --lazy-lizard: #99a149;
  --lazy-lizard-rgb: 153 161 73;
  --lazy-lizard-oklch: oklch(0.684 0.113 113.7);
}

.element {
  color: var(--lazy-lizard);
  background-color: hsl(65 38% 46%);
  border-color: oklch(0.684 0.113 113.7);
}

Tailwind CSS v4

@theme {
  --color-lazy-lizard: #99a149;
  --color-lazy-lizard-50: #f3fad5;
  --color-lazy-lizard-100: #e6edc3;
  --color-lazy-lizard-200: #d2dba4;
  --color-lazy-lizard-300: #b4bf7b;
  --color-lazy-lizard-400: #9ea653;
  --color-lazy-lizard-500: #868e26;
  --color-lazy-lizard-600: #717823;
  --color-lazy-lizard-700: #5b601c;
  --color-lazy-lizard-800: #444610;
  --color-lazy-lizard-900: #2f300a;
  --color-lazy-lizard-950: #1b1c00;
}

SCSS

$lazy-lizard: #99a149;
$lazy-lizard-rgb: 153, 161, 73;
$lazy-lizard-light: mix(#fff, $lazy-lizard, 20%);
$lazy-lizard-dark: mix(#000, $lazy-lizard, 20%);

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