#61543B

CSS

:root {
  --olive-bark: #61543b;
  --olive-bark-rgb: 97 84 59;
  --olive-bark-oklch: oklch(0.452 0.042 83.4);
}

.element {
  color: var(--olive-bark);
  background-color: hsl(39 24% 31%);
  border-color: oklch(0.452 0.042 83.4);
}

Tailwind CSS v4

@theme {
  --color-olive-bark: #61543b;
  --color-olive-bark-50: #fbf5e8;
  --color-olive-bark-100: #eee7d9;
  --color-olive-bark-200: #dcd3c1;
  --color-olive-bark-300: #c1b6a0;
  --color-olive-bark-400: #aa9d83;
  --color-olive-bark-500: #948467;
  --color-olive-bark-600: #7d7057;
  --color-olive-bark-700: #645946;
  --color-olive-bark-800: #4a4132;
  --color-olive-bark-900: #332d22;
  --color-olive-bark-950: #1f1a11;
}

SCSS

$olive-bark: #61543b;
$olive-bark-rgb: 97, 84, 59;
$olive-bark-light: mix(#fff, $olive-bark, 20%);
$olive-bark-dark: mix(#000, $olive-bark, 20%);

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