#A76064

CSS

:root {
  --cinnapink: #a76064;
  --cinnapink-rgb: 167 96 100;
  --cinnapink-oklch: oklch(0.571 0.092 16.8);
}

.element {
  color: var(--cinnapink);
  background-color: hsl(357 29% 52%);
  border-color: oklch(0.571 0.092 16.8);
}

Tailwind CSS v4

@theme {
  --color-cinnapink: #a76064;
  --color-cinnapink-50: #ffebeb;
  --color-cinnapink-100: #ffdcdc;
  --color-cinnapink-200: #fac5c5;
  --color-cinnapink-300: #e3a5a5;
  --color-cinnapink-400: #cf888b;
  --color-cinnapink-500: #bb6c70;
  --color-cinnapink-600: #9e5b5f;
  --color-cinnapink-700: #7f494c;
  --color-cinnapink-800: #5e3438;
  --color-cinnapink-900: #422426;
  --color-cinnapink-950: #2a1215;
}

SCSS

$cinnapink: #a76064;
$cinnapink-rgb: 167, 96, 100;
$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);
}