#31A559

CSS

:root {
  --devil-s-grass: #31a559;
  --devil-s-grass-rgb: 49 165 89;
  --devil-s-grass-oklch: oklch(0.64 0.152 150.7);
}

.element {
  color: var(--devil-s-grass);
  background-color: hsl(141 54% 42%);
  border-color: oklch(0.64 0.152 150.7);
}

Tailwind CSS v4

@theme {
  --color-devil-s-grass: #31a559;
  --color-devil-s-grass-50: #d5ffe1;
  --color-devil-s-grass-100: #c2f7d0;
  --color-devil-s-grass-200: #a2e8b5;
  --color-devil-s-grass-300: #76ce92;
  --color-devil-s-grass-400: #4fb76e;
  --color-devil-s-grass-500: #04a14d;
  --color-devil-s-grass-600: #108842;
  --color-devil-s-grass-700: #0e6d34;
  --color-devil-s-grass-800: #0e5022;
  --color-devil-s-grass-900: #093817;
  --color-devil-s-grass-950: #002208;
}

SCSS

$devil-s-grass: #31a559;
$devil-s-grass-rgb: 49, 165, 89;
$devil-s-grass-light: mix(#fff, $devil-s-grass, 20%);
$devil-s-grass-dark: mix(#000, $devil-s-grass, 20%);

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