#9A676D

CSS

:root {
  --cinnapink: #9a676d;
  --cinnapink-rgb: 154 103 109;
  --cinnapink-oklch: oklch(0.569 0.066 11.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(353 20% 50%);
  border-color: oklch(0.569 0.066 11.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9a676d;
  --color-cinnapink-50: #ffeeef;
  --color-cinnapink-100: #fddfe1;
  --color-cinnapink-200: #efc9cc;
  --color-cinnapink-300: #d7aaad;
  --color-cinnapink-400: #c28f94;
  --color-cinnapink-500: #ad747b;
  --color-cinnapink-600: #926268;
  --color-cinnapink-700: #754e53;
  --color-cinnapink-800: #57393d;
  --color-cinnapink-900: #3d272a;
  --color-cinnapink-950: #261518;
}

SCSS

$cinnapink: #9a676d;
$cinnapink-rgb: 154, 103, 109;
$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);
}