#8EA35C

CSS

:root {
  --gallant-green: #8ea35c;
  --gallant-green-rgb: 142 163 92;
  --gallant-green-oklch: oklch(0.682 0.099 122.5);
}

.element {
  color: var(--gallant-green);
  background-color: hsl(78 28% 50%);
  border-color: oklch(0.682 0.099 122.5);
}

Tailwind CSS v4

@theme {
  --color-gallant-green: #8ea35c;
  --color-gallant-green-50: #effbdc;
  --color-gallant-green-100: #e0eeca;
  --color-gallant-green-200: #cbdcae;
  --color-gallant-green-300: #acc189;
  --color-gallant-green-400: #94a865;
  --color-gallant-green-500: #7a9141;
  --color-gallant-green-600: #687a38;
  --color-gallant-green-700: #53622d;
  --color-gallant-green-800: #3e471e;
  --color-gallant-green-900: #2a3113;
  --color-gallant-green-950: #181d05;
}

SCSS

$gallant-green: #8ea35c;
$gallant-green-rgb: 142, 163, 92;
$gallant-green-light: mix(#fff, $gallant-green, 20%);
$gallant-green-dark: mix(#000, $gallant-green, 20%);

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