#9E6379

CSS

:root {
  --cinnapink: #9e6379;
  --cinnapink-rgb: 158 99 121;
  --cinnapink-oklch: oklch(0.571 0.081 356);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(338 23% 50%);
  border-color: oklch(0.571 0.081 356);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #9e6379;
  --color-cinnapink-50: #ffecf5;
  --color-cinnapink-100: #ffdde8;
  --color-cinnapink-200: #f3c6d4;
  --color-cinnapink-300: #dba7b7;
  --color-cinnapink-400: #c68ba0;
  --color-cinnapink-500: #b16f88;
  --color-cinnapink-600: #965e73;
  --color-cinnapink-700: #784b5c;
  --color-cinnapink-800: #593644;
  --color-cinnapink-900: #3e252f;
  --color-cinnapink-950: #27141c;
}

SCSS

$cinnapink: #9e6379;
$cinnapink-rgb: 158, 99, 121;
$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);
}