#9E6565

CSS

:root {
  --cinnapink: #9e6565;
  --cinnapink-rgb: 158 101 101;
  --cinnapink-oklch: oklch(0.568 0.074 19.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(0 23% 51%);
  border-color: oklch(0.568 0.074 19.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9e6565;
  --color-cinnapink-50: #ffedec;
  --color-cinnapink-100: #ffdfdd;
  --color-cinnapink-200: #f3c8c6;
  --color-cinnapink-300: #dba9a7;
  --color-cinnapink-400: #c78d8d;
  --color-cinnapink-500: #b27272;
  --color-cinnapink-600: #966161;
  --color-cinnapink-700: #794d4d;
  --color-cinnapink-800: #593839;
  --color-cinnapink-900: #3f2627;
  --color-cinnapink-950: #281415;
}

SCSS

$cinnapink: #9e6565;
$cinnapink-rgb: 158, 101, 101;
$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);
}