#886639

CSS

:root {
  --sneaky-sesame: #886639;
  --sneaky-sesame-rgb: 136 102 57;
  --sneaky-sesame-oklch: oklch(0.535 0.076 72.7);
}

.element {
  color: var(--sneaky-sesame);
  background-color: hsl(34 41% 38%);
  border-color: oklch(0.535 0.076 72.7);
}

Tailwind CSS v4

@theme {
  --color-sneaky-sesame: #886639;
  --color-sneaky-sesame-50: #fff3de;
  --color-sneaky-sesame-100: #f7e5cd;
  --color-sneaky-sesame-200: #e8d0b1;
  --color-sneaky-sesame-300: #cfb28d;
  --color-sneaky-sesame-400: #ba986c;
  --color-sneaky-sesame-500: #a57e4b;
  --color-sneaky-sesame-600: #8b6b41;
  --color-sneaky-sesame-700: #705533;
  --color-sneaky-sesame-800: #533e24;
  --color-sneaky-sesame-900: #3a2b18;
  --color-sneaky-sesame-950: #241809;
}

SCSS

$sneaky-sesame: #886639;
$sneaky-sesame-rgb: 136, 102, 57;
$sneaky-sesame-light: mix(#fff, $sneaky-sesame, 20%);
$sneaky-sesame-dark: mix(#000, $sneaky-sesame, 20%);

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