#9B6A65

CSS

:root {
  --rustling-leaves: #9b6a65;
  --rustling-leaves-rgb: 155 106 101;
  --rustling-leaves-oklch: oklch(0.574 0.064 25.7);
}

.element {
  color: var(--rustling-leaves);
  background-color: hsl(6 21% 50%);
  border-color: oklch(0.574 0.064 25.7);
}

Tailwind CSS v4

@theme {
  --color-rustling-leaves: #9b6a65;
  --color-rustling-leaves-50: #ffefeb;
  --color-rustling-leaves-100: #fde0dc;
  --color-rustling-leaves-200: #efcbc5;
  --color-rustling-leaves-300: #d6aca6;
  --color-rustling-leaves-400: #c2908b;
  --color-rustling-leaves-500: #ad7670;
  --color-rustling-leaves-600: #92645f;
  --color-rustling-leaves-700: #75504c;
  --color-rustling-leaves-800: #573a38;
  --color-rustling-leaves-900: #3c2826;
  --color-rustling-leaves-950: #261614;
}

SCSS

$rustling-leaves: #9b6a65;
$rustling-leaves-rgb: 155, 106, 101;
$rustling-leaves-light: mix(#fff, $rustling-leaves, 20%);
$rustling-leaves-dark: mix(#000, $rustling-leaves, 20%);

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