#6D7E26

CSS

:root {
  --topiary-green: #6d7e26;
  --topiary-green-rgb: 109 126 38;
  --topiary-green-oklch: oklch(0.561 0.114 119.7);
}

.element {
  color: var(--topiary-green);
  background-color: hsl(72 54% 32%);
  border-color: oklch(0.561 0.114 119.7);
}

Tailwind CSS v4

@theme {
  --color-topiary-green: #6d7e26;
  --color-topiary-green-50: #f0fbd7;
  --color-topiary-green-100: #e1eec5;
  --color-topiary-green-200: #ccdca6;
  --color-topiary-green-300: #aec17f;
  --color-topiary-green-400: #96a858;
  --color-topiary-green-500: #7d912e;
  --color-topiary-green-600: #6a7a29;
  --color-topiary-green-700: #556220;
  --color-topiary-green-800: #3f4714;
  --color-topiary-green-900: #2c310c;
  --color-topiary-green-950: #191d01;
}

SCSS

$topiary-green: #6d7e26;
$topiary-green-rgb: 109, 126, 38;
$topiary-green-light: mix(#fff, $topiary-green, 20%);
$topiary-green-dark: mix(#000, $topiary-green, 20%);

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