#996B6A

CSS

:root {
  --cinnapink: #996b6a;
  --cinnapink-rgb: 153 107 106;
  --cinnapink-oklch: oklch(0.575 0.059 20.5);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(1 19% 51%);
  border-color: oklch(0.575 0.059 20.5);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #996b6a;
  --color-cinnapink-50: #ffefed;
  --color-cinnapink-100: #fbe1df;
  --color-cinnapink-200: #edcbc9;
  --color-cinnapink-300: #d4acaa;
  --color-cinnapink-400: #bf9190;
  --color-cinnapink-500: #aa7776;
  --color-cinnapink-600: #906564;
  --color-cinnapink-700: #735050;
  --color-cinnapink-800: #553a3a;
  --color-cinnapink-900: #3b2828;
  --color-cinnapink-950: #251616;
}

SCSS

$cinnapink: #996b6a;
$cinnapink-rgb: 153, 107, 106;
$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);
}