#996867

CSS

:root {
  --cinnapink: #996867;
  --cinnapink-rgb: 153 104 103;
  --cinnapink-oklch: oklch(0.568 0.063 20.5);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(1 20% 50%);
  border-color: oklch(0.568 0.063 20.5);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #996867;
  --color-cinnapink-50: #ffefed;
  --color-cinnapink-100: #fde0de;
  --color-cinnapink-200: #eecac8;
  --color-cinnapink-300: #d6aba9;
  --color-cinnapink-400: #c1908f;
  --color-cinnapink-500: #ac7574;
  --color-cinnapink-600: #926463;
  --color-cinnapink-700: #754f4f;
  --color-cinnapink-800: #563a3a;
  --color-cinnapink-900: #3c2728;
  --color-cinnapink-950: #261516;
}

SCSS

$cinnapink: #996867;
$cinnapink-rgb: 153, 104, 103;
$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);
}