Russet Brown

CSS

:root {
  --russet-brown: #823d38;
  --russet-brown-rgb: 130 61 56;
  --russet-brown-oklch: oklch(0.449 0.096 25.9);
}

.element {
  color: var(--russet-brown);
  background-color: hsl(4 40% 36%);
  border-color: oklch(0.449 0.096 25.9);
}

Tailwind CSS v4

@theme {
  --color-russet-brown: #823d38;
  --color-russet-brown-50: #ffebe6;
  --color-russet-brown-100: #ffddd6;
  --color-russet-brown-200: #fbc5be;
  --color-russet-brown-300: #e5a59c;
  --color-russet-brown-400: #d18881;
  --color-russet-brown-500: #be6c64;
  --color-russet-brown-600: #a05b55;
  --color-russet-brown-700: #814944;
  --color-russet-brown-800: #5f3432;
  --color-russet-brown-900: #432422;
  --color-russet-brown-950: #2b1211;
}

SCSS

$russet-brown: #823d38;
$russet-brown-rgb: 130, 61, 56;
$russet-brown-light: mix(#fff, $russet-brown, 20%);
$russet-brown-dark: mix(#000, $russet-brown, 20%);

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