#2E6000

CSS

:root {
  --lincoln-green: #2e6000;
  --lincoln-green-rgb: 46 96 0;
  --lincoln-green-oklch: oklch(0.437 0.128 135.3);
}

.element {
  color: var(--lincoln-green);
  background-color: hsl(91 100% 19%);
  border-color: oklch(0.437 0.128 135.3);
}

Tailwind CSS v4

@theme {
  --color-lincoln-green: #2e6000;
  --color-lincoln-green-50: #e4fedb;
  --color-lincoln-green-100: #d4f3c9;
  --color-lincoln-green-200: #bae2ac;
  --color-lincoln-green-300: #98c786;
  --color-lincoln-green-400: #7caf60;
  --color-lincoln-green-500: #5e983a;
  --color-lincoln-green-600: #508133;
  --color-lincoln-green-700: #406728;
  --color-lincoln-green-800: #304c19;
  --color-lincoln-green-900: #203410;
  --color-lincoln-green-950: #102003;
}

SCSS

$lincoln-green: #2e6000;
$lincoln-green-rgb: 46, 96, 0;
$lincoln-green-light: mix(#fff, $lincoln-green, 20%);
$lincoln-green-dark: mix(#000, $lincoln-green, 20%);

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