Turtle Shell

CSS

:root {
  --turtle-shell: #897c64;
  --turtle-shell-rgb: 137 124 100;
  --turtle-shell-oklch: oklch(0.592 0.038 82.8);
}

.element {
  color: var(--turtle-shell);
  background-color: hsl(39 16% 46%);
  border-color: oklch(0.592 0.038 82.8);
}

Tailwind CSS v4

@theme {
  --color-turtle-shell: #897c64;
  --color-turtle-shell-50: #faf5e9;
  --color-turtle-shell-100: #eee7da;
  --color-turtle-shell-200: #dcd3c2;
  --color-turtle-shell-300: #c0b6a2;
  --color-turtle-shell-400: #aa9d85;
  --color-turtle-shell-500: #938469;
  --color-turtle-shell-600: #7c705a;
  --color-turtle-shell-700: #635a47;
  --color-turtle-shell-800: #494133;
  --color-turtle-shell-900: #332d23;
  --color-turtle-shell-950: #1f1a12;
}

SCSS

$turtle-shell: #897c64;
$turtle-shell-rgb: 137, 124, 100;
$turtle-shell-light: mix(#fff, $turtle-shell, 20%);
$turtle-shell-dark: mix(#000, $turtle-shell, 20%);

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