#4C6C47

CSS

:root {
  --under-the-radar: #4c6c47;
  --under-the-radar-rgb: 76 108 71;
  --under-the-radar-oklch: oklch(0.496 0.068 141.2);
}

.element {
  color: var(--under-the-radar);
  background-color: hsl(112 21% 35%);
  border-color: oklch(0.496 0.068 141.2);
}

Tailwind CSS v4

@theme {
  --color-under-the-radar: #4c6c47;
  --color-under-the-radar-50: #eafbe9;
  --color-under-the-radar-100: #dbeeda;
  --color-under-the-radar-200: #c4dcc2;
  --color-under-the-radar-300: #a3c1a1;
  --color-under-the-radar-400: #88a983;
  --color-under-the-radar-500: #6d9267;
  --color-under-the-radar-600: #5c7b57;
  --color-under-the-radar-700: #4a6346;
  --color-under-the-radar-800: #364831;
  --color-under-the-radar-900: #253221;
  --color-under-the-radar-950: #141e11;
}

SCSS

$under-the-radar: #4c6c47;
$under-the-radar-rgb: 76, 108, 71;
$under-the-radar-light: mix(#fff, $under-the-radar, 20%);
$under-the-radar-dark: mix(#000, $under-the-radar, 20%);

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