#C18D90

CSS

:root {
  --rosy-brown: #c18d90;
  --rosy-brown-rgb: 193 141 144;
  --rosy-brown-oklch: oklch(0.695 0.064 15);
}

.element {
  color: var(--rosy-brown);
  background-color: hsl(357 30% 65%);
  border-color: oklch(0.695 0.064 15);
}

Tailwind CSS v4

@theme {
  --color-rosy-brown: #c18d90;
  --color-rosy-brown-50: #ffeeef;
  --color-rosy-brown-100: #fde0e0;
  --color-rosy-brown-200: #eecaca;
  --color-rosy-brown-300: #d6abac;
  --color-rosy-brown-400: #c19092;
  --color-rosy-brown-500: #ac7579;
  --color-rosy-brown-600: #916366;
  --color-rosy-brown-700: #754f52;
  --color-rosy-brown-800: #56393c;
  --color-rosy-brown-900: #3c2729;
  --color-rosy-brown-950: #261517;
}

SCSS

$rosy-brown: #c18d90;
$rosy-brown-rgb: 193, 141, 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);
}