#976B71

CSS

:root {
  --cinnapink: #976b71;
  --cinnapink-rgb: 151 107 113;
  --cinnapink-oklch: oklch(0.575 0.057 10);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(352 17% 51%);
  border-color: oklch(0.575 0.057 10);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #976b71;
  --color-cinnapink-50: #ffeff1;
  --color-cinnapink-100: #fae1e3;
  --color-cinnapink-200: #ebcbce;
  --color-cinnapink-300: #d3acb0;
  --color-cinnapink-400: #bd9197;
  --color-cinnapink-500: #a8777d;
  --color-cinnapink-600: #8e656a;
  --color-cinnapink-700: #725055;
  --color-cinnapink-800: #543a3f;
  --color-cinnapink-900: #3b282b;
  --color-cinnapink-950: #241618;
}

SCSS

$cinnapink: #976b71;
$cinnapink-rgb: 151, 107, 113;
$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);
}