New Green

CSS

:root {
  --new-green: #b5ac31;
  --new-green-rgb: 181 172 49;
  --new-green-oklch: oklch(0.73 0.139 105.1);
}

.element {
  color: var(--new-green);
  background-color: hsl(56 57% 45%);
  border-color: oklch(0.73 0.139 105.1);
}

Tailwind CSS v4

@theme {
  --color-new-green: #b5ac31;
  --color-new-green-50: #f9f9cb;
  --color-new-green-100: #ececb6;
  --color-new-green-200: #dad993;
  --color-new-green-300: #bfbc65;
  --color-new-green-400: #aba230;
  --color-new-green-500: #958a00;
  --color-new-green-600: #7e7400;
  --color-new-green-700: #655d00;
  --color-new-green-800: #4b4400;
  --color-new-green-900: #342f00;
  --color-new-green-950: #201b00;
}

SCSS

$new-green: #b5ac31;
$new-green-rgb: 181, 172, 49;
$new-green-light: mix(#fff, $new-green, 20%);
$new-green-dark: mix(#000, $new-green, 20%);

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