#328513

CSS

:root {
  --green-bell-pepper: #328513;
  --green-bell-pepper-rgb: 50 133 19;
  --green-bell-pepper-oklch: oklch(0.545 0.164 139.3);
}

.element {
  color: var(--green-bell-pepper);
  background-color: hsl(104 75% 30%);
  border-color: oklch(0.545 0.164 139.3);
}

Tailwind CSS v4

@theme {
  --color-green-bell-pepper: #328513;
  --color-green-bell-pepper-50: #dcffd6;
  --color-green-bell-pepper-100: #caf6c3;
  --color-green-bell-pepper-200: #ade6a5;
  --color-green-bell-pepper-300: #86cc7c;
  --color-green-bell-pepper-400: #67b552;
  --color-green-bell-pepper-500: #419e21;
  --color-green-bell-pepper-600: #39861f;
  --color-green-bell-pepper-700: #2d6b19;
  --color-green-bell-pepper-800: #234f0b;
  --color-green-bell-pepper-900: #173707;
  --color-green-bell-pepper-950: #082100;
}

SCSS

$green-bell-pepper: #328513;
$green-bell-pepper-rgb: 50, 133, 19;
$green-bell-pepper-light: mix(#fff, $green-bell-pepper, 20%);
$green-bell-pepper-dark: mix(#000, $green-bell-pepper, 20%);

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