#927050

CSS

:root {
  --decreasing-brown: #927050;
  --decreasing-brown-rgb: 146 112 80;
  --decreasing-brown-oklch: oklch(0.571 0.063 64.3);
}

.element {
  color: var(--decreasing-brown);
  background-color: hsl(29 29% 44%);
  border-color: oklch(0.571 0.063 64.3);
}

Tailwind CSS v4

@theme {
  --color-decreasing-brown: #927050;
  --color-decreasing-brown-50: #fff2e3;
  --color-decreasing-brown-100: #f7e4d2;
  --color-decreasing-brown-200: #e7d0b9;
  --color-decreasing-brown-300: #ceb296;
  --color-decreasing-brown-400: #b99778;
  --color-decreasing-brown-500: #a47e5a;
  --color-decreasing-brown-600: #8a6a4c;
  --color-decreasing-brown-700: #6f553d;
  --color-decreasing-brown-800: #523e2c;
  --color-decreasing-brown-900: #392a1d;
  --color-decreasing-brown-950: #24180d;
}

SCSS

$decreasing-brown: #927050;
$decreasing-brown-rgb: 146, 112, 80;
$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);
}