#314100

CSS

:root {
  --dark-olive: #314100;
  --dark-olive-rgb: 49 65 0;
  --dark-olive-oklch: oklch(0.348 0.086 123.9);
}

.element {
  color: var(--dark-olive);
  background-color: hsl(75 100% 13%);
  border-color: oklch(0.348 0.086 123.9);
}

Tailwind CSS v4

@theme {
  --color-dark-olive: #314100;
  --color-dark-olive-50: #effae0;
  --color-dark-olive-100: #e1eecf;
  --color-dark-olive-200: #cbdbb4;
  --color-dark-olive-300: #acc090;
  --color-dark-olive-400: #94a76e;
  --color-dark-olive-500: #7a904d;
  --color-dark-olive-600: #687a42;
  --color-dark-olive-700: #536135;
  --color-dark-olive-800: #3d4724;
  --color-dark-olive-900: #2a3118;
  --color-dark-olive-950: #181d09;
}

SCSS

$dark-olive: #314100;
$dark-olive-rgb: 49, 65, 0;
$dark-olive-light: mix(#fff, $dark-olive, 20%);
$dark-olive-dark: mix(#000, $dark-olive, 20%);

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