#AA5D6F

CSS

:root {
  --cinnapink: #aa5d6f;
  --cinnapink-rgb: 170 93 111;
  --cinnapink-oklch: oklch(0.573 0.102 5.8);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(346 31% 52%);
  border-color: oklch(0.573 0.102 5.8);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #aa5d6f;
  --color-cinnapink-50: #ffeaf0;
  --color-cinnapink-100: #ffdbe1;
  --color-cinnapink-200: #fcc3cc;
  --color-cinnapink-300: #e6a2ad;
  --color-cinnapink-400: #d28595;
  --color-cinnapink-500: #be687c;
  --color-cinnapink-600: #a15869;
  --color-cinnapink-700: #814654;
  --color-cinnapink-800: #5f323e;
  --color-cinnapink-900: #43222b;
  --color-cinnapink-950: #2b1118;
}

SCSS

$cinnapink: #aa5d6f;
$cinnapink-rgb: 170, 93, 111;
$cinnapink-light: mix(#fff, $cinnapink, 20%);
$cinnapink-dark: mix(#000, $cinnapink, 20%);

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