#996674

CSS

:root {
  --cinnapink: #996674;
  --cinnapink-rgb: 153 102 116;
  --cinnapink-oklch: oklch(0.568 0.068 1.6);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(344 20% 50%);
  border-color: oklch(0.568 0.068 1.6);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #996674;
  --color-cinnapink-50: #ffeef3;
  --color-cinnapink-100: #fddfe5;
  --color-cinnapink-200: #efc9d1;
  --color-cinnapink-300: #d7a9b3;
  --color-cinnapink-400: #c18e9b;
  --color-cinnapink-500: #ac7383;
  --color-cinnapink-600: #92626f;
  --color-cinnapink-700: #754e59;
  --color-cinnapink-800: #563841;
  --color-cinnapink-900: #3c272d;
  --color-cinnapink-950: #26151a;
}

SCSS

$cinnapink: #996674;
$cinnapink-rgb: 153, 102, 116;
$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);
}