#B99190

CSS

:root {
  --rosy-brown: #b99190;
  --rosy-brown-rgb: 185 145 144;
  --rosy-brown-oklch: oklch(0.694 0.049 20.1);
}

.element {
  color: var(--rosy-brown);
  background-color: hsl(1 23% 65%);
  border-color: oklch(0.694 0.049 20.1);
}

Tailwind CSS v4

@theme {
  --color-rosy-brown: #b99190;
  --color-rosy-brown-50: #fff0ef;
  --color-rosy-brown-100: #f8e2e1;
  --color-rosy-brown-200: #e9cdcb;
  --color-rosy-brown-300: #cfaeac;
  --color-rosy-brown-400: #ba9493;
  --color-rosy-brown-500: #a47a79;
  --color-rosy-brown-600: #8b6766;
  --color-rosy-brown-700: #6f5252;
  --color-rosy-brown-800: #523c3c;
  --color-rosy-brown-900: #392929;
  --color-rosy-brown-950: #231717;
}

SCSS

$rosy-brown: #b99190;
$rosy-brown-rgb: 185, 145, 144;
$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);
}