#AC9693

CSS

:root {
  --cortex: #ac9693;
  --cortex-rgb: 172 150 147;
  --cortex-oklch: oklch(0.692 0.027 27);
}

.element {
  color: var(--cortex);
  background-color: hsl(7 13% 63%);
  border-color: oklch(0.692 0.027 27);
}

Tailwind CSS v4

@theme {
  --color-cortex: #ac9693;
  --color-cortex-50: #fdf2f1;
  --color-cortex-100: #f1e5e3;
  --color-cortex-200: #dfd0ce;
  --color-cortex-300: #c5b3b0;
  --color-cortex-400: #ae9996;
  --color-cortex-500: #97807d;
  --color-cortex-600: #806c6a;
  --color-cortex-700: #665654;
  --color-cortex-800: #4b3f3e;
  --color-cortex-900: #342b2a;
  --color-cortex-950: #201918;
}

SCSS

$cortex: #ac9693;
$cortex-rgb: 172, 150, 147;
$cortex-light: mix(#fff, $cortex, 20%);
$cortex-dark: mix(#000, $cortex, 20%);

.element {
  color: $cortex;
  box-shadow: 0 0 0 2px rgba($cortex, 0.35);
}