#211610

CSS

:root {
  --dark-orchestra: #211610;
  --dark-orchestra-rgb: 33 22 16;
  --dark-orchestra-oklch: oklch(0.212 0.021 49.8);
}

.element {
  color: var(--dark-orchestra);
  background-color: hsl(21 35% 10%);
  border-color: oklch(0.212 0.021 49.8);
}

Tailwind CSS v4

@theme {
  --color-dark-orchestra: #211610;
  --color-dark-orchestra-50: #faf4f0;
  --color-dark-orchestra-100: #eee6e1;
  --color-dark-orchestra-200: #dcd2cc;
  --color-dark-orchestra-300: #c1b5ae;
  --color-dark-orchestra-400: #a99b93;
  --color-dark-orchestra-500: #92827a;
  --color-dark-orchestra-600: #7c6e67;
  --color-dark-orchestra-700: #635852;
  --color-dark-orchestra-800: #49403c;
  --color-dark-orchestra-900: #332c29;
  --color-dark-orchestra-950: #1e1917;
}

SCSS

$dark-orchestra: #211610;
$dark-orchestra-rgb: 33, 22, 16;
$dark-orchestra-light: mix(#fff, $dark-orchestra, 20%);
$dark-orchestra-dark: mix(#000, $dark-orchestra, 20%);

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