#956F4C

CSS

:root {
  --decreasing-brown: #956f4c;
  --decreasing-brown-rgb: 149 111 76;
  --decreasing-brown-oklch: oklch(0.571 0.069 63.4);
}

.element {
  color: var(--decreasing-brown);
  background-color: hsl(29 32% 44%);
  border-color: oklch(0.571 0.069 63.4);
}

Tailwind CSS v4

@theme {
  --color-decreasing-brown: #956f4c;
  --color-decreasing-brown-50: #fff2e1;
  --color-decreasing-brown-100: #f9e4d0;
  --color-decreasing-brown-200: #eacfb6;
  --color-decreasing-brown-300: #d1b193;
  --color-decreasing-brown-400: #bc9674;
  --color-decreasing-brown-500: #a77c55;
  --color-decreasing-brown-600: #8d6948;
  --color-decreasing-brown-700: #71543a;
  --color-decreasing-brown-800: #543d29;
  --color-decreasing-brown-900: #3b2a1c;
  --color-decreasing-brown-950: #25170c;
}

SCSS

$decreasing-brown: #956f4c;
$decreasing-brown-rgb: 149, 111, 76;
$decreasing-brown-light: mix(#fff, $decreasing-brown, 20%);
$decreasing-brown-dark: mix(#000, $decreasing-brown, 20%);

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