#747C17

CSS

:root {
  --olive: #747c17;
  --olive-rgb: 116 124 23;
  --olive-oklch: oklch(0.561 0.118 114.3);
}

.element {
  color: var(--olive);
  background-color: hsl(65 69% 29%);
  border-color: oklch(0.561 0.118 114.3);
}

Tailwind CSS v4

@theme {
  --color-olive: #747c17;
  --color-olive-50: #f3fad4;
  --color-olive-100: #e5eec1;
  --color-olive-200: #d1dba1;
  --color-olive-300: #b4bf78;
  --color-olive-400: #9da64f;
  --color-olive-500: #858e1d;
  --color-olive-600: #71781c;
  --color-olive-700: #5a6017;
  --color-olive-800: #43460c;
  --color-olive-900: #2e3107;
  --color-olive-950: #1b1d00;
}

SCSS

$olive: #747c17;
$olive-rgb: 116, 124, 23;
$olive-light: mix(#fff, $olive, 20%);
$olive-dark: mix(#000, $olive, 20%);

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