#AF9590

CSS

:root {
  --cortex: #af9590;
  --cortex-rgb: 175 149 144;
  --cortex-oklch: oklch(0.692 0.032 30.7);
}

.element {
  color: var(--cortex);
  background-color: hsl(10 16% 63%);
  border-color: oklch(0.692 0.032 30.7);
}

Tailwind CSS v4

@theme {
  --color-cortex: #af9590;
  --color-cortex-50: #fef2ef;
  --color-cortex-100: #f2e4e1;
  --color-cortex-200: #e2d0cc;
  --color-cortex-300: #c7b2ad;
  --color-cortex-400: #b19893;
  --color-cortex-500: #9a7f79;
  --color-cortex-600: #836b67;
  --color-cortex-700: #695652;
  --color-cortex-800: #4d3e3c;
  --color-cortex-900: #362b29;
  --color-cortex-950: #211817;
}

SCSS

$cortex: #af9590;
$cortex-rgb: 175, 149, 144;
$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);
}