#B4C298

CSS

:root {
  --beige-and-sage: #b4c298;
  --beige-and-sage-rgb: 180 194 152;
  --beige-and-sage-oklch: oklch(0.792 0.059 122.7);
}

.element {
  color: var(--beige-and-sage);
  background-color: hsl(80 26% 68%);
  border-color: oklch(0.792 0.059 122.7);
}

Tailwind CSS v4

@theme {
  --color-beige-and-sage: #b4c298;
  --color-beige-and-sage-50: #f1f8e6;
  --color-beige-and-sage-100: #e3ecd6;
  --color-beige-and-sage-200: #ced9be;
  --color-beige-and-sage-300: #b0bd9c;
  --color-beige-and-sage-400: #98a57e;
  --color-beige-and-sage-500: #7f8d61;
  --color-beige-and-sage-600: #6b7752;
  --color-beige-and-sage-700: #565f41;
  --color-beige-and-sage-800: #3f462e;
  --color-beige-and-sage-900: #2c301f;
  --color-beige-and-sage-950: #191c0f;
}

SCSS

$beige-and-sage: #b4c298;
$beige-and-sage-rgb: 180, 194, 152;
$beige-and-sage-light: mix(#fff, $beige-and-sage, 20%);
$beige-and-sage-dark: mix(#000, $beige-and-sage, 20%);

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