#B99097

CSS

:root {
  --rosy-brown: #b99097;
  --rosy-brown-rgb: 185 144 151;
  --rosy-brown-oklch: oklch(0.694 0.05 7);
}

.element {
  color: var(--rosy-brown);
  background-color: hsl(350 23% 65%);
  border-color: oklch(0.694 0.05 7);
}

Tailwind CSS v4

@theme {
  --color-rosy-brown: #b99097;
  --color-rosy-brown-50: #fff0f2;
  --color-rosy-brown-100: #f8e1e4;
  --color-rosy-brown-200: #e9ccd0;
  --color-rosy-brown-300: #d0adb2;
  --color-rosy-brown-400: #ba9399;
  --color-rosy-brown-500: #a47980;
  --color-rosy-brown-600: #8b666d;
  --color-rosy-brown-700: #6f5257;
  --color-rosy-brown-800: #523b40;
  --color-rosy-brown-900: #39292c;
  --color-rosy-brown-950: #231619;
}

SCSS

$rosy-brown: #b99097;
$rosy-brown-rgb: 185, 144, 151;
$rosy-brown-light: mix(#fff, $rosy-brown, 20%);
$rosy-brown-dark: mix(#000, $rosy-brown, 20%);

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