#B59298

CSS

:root {
  --rosy-brown: #b59298;
  --rosy-brown-rgb: 181 146 152;
  --rosy-brown-oklch: oklch(0.694 0.043 6.7);
}

.element {
  color: var(--rosy-brown);
  background-color: hsl(350 19% 64%);
  border-color: oklch(0.694 0.043 6.7);
}

Tailwind CSS v4

@theme {
  --color-rosy-brown: #b59298;
  --color-rosy-brown-50: #fff0f2;
  --color-rosy-brown-100: #f6e2e5;
  --color-rosy-brown-200: #e6cdd0;
  --color-rosy-brown-300: #ccafb3;
  --color-rosy-brown-400: #b6949a;
  --color-rosy-brown-500: #a07b81;
  --color-rosy-brown-600: #87686d;
  --color-rosy-brown-700: #6c5357;
  --color-rosy-brown-800: #503c40;
  --color-rosy-brown-900: #37292c;
  --color-rosy-brown-950: #221719;
}

SCSS

$rosy-brown: #b59298;
$rosy-brown-rgb: 181, 146, 152;
$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);
}