True Copper

CSS

:root {
  --true-copper: #8b5643;
  --true-copper-rgb: 139 86 67;
  --true-copper-oklch: oklch(0.508 0.077 40.4);
}

.element {
  color: var(--true-copper);
  background-color: hsl(16 35% 40%);
  border-color: oklch(0.508 0.077 40.4);
}

Tailwind CSS v4

@theme {
  --color-true-copper: #8b5643;
  --color-true-copper-50: #ffefe4;
  --color-true-copper-100: #ffe0d4;
  --color-true-copper-200: #f2cabb;
  --color-true-copper-300: #daab99;
  --color-true-copper-400: #c68f7c;
  --color-true-copper-500: #b2755f;
  --color-true-copper-600: #966351;
  --color-true-copper-700: #794f40;
  --color-true-copper-800: #5a392f;
  --color-true-copper-900: #3f2720;
  --color-true-copper-950: #28150f;
}

SCSS

$true-copper: #8b5643;
$true-copper-rgb: 139, 86, 67;
$true-copper-light: mix(#fff, $true-copper, 20%);
$true-copper-dark: mix(#000, $true-copper, 20%);

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