#AA4D71

CSS

:root {
  --our-little-secret: #aa4d71;
  --our-little-secret-rgb: 170 77 113;
  --our-little-secret-oklch: oklch(0.549 0.128 357.8);
}

.element {
  color: var(--our-little-secret);
  background-color: hsl(337 38% 48%);
  border-color: oklch(0.549 0.128 357.8);
}

Tailwind CSS v4

@theme {
  --color-our-little-secret: #aa4d71;
  --color-our-little-secret-50: #ffe7f4;
  --color-our-little-secret-100: #ffd7e6;
  --color-our-little-secret-200: #ffbed2;
  --color-our-little-secret-300: #ee9cb5;
  --color-our-little-secret-400: #da7d9e;
  --color-our-little-secret-500: #c75e86;
  --color-our-little-secret-600: #a85071;
  --color-our-little-secret-700: #87405b;
  --color-our-little-secret-800: #642d44;
  --color-our-little-secret-900: #461f2f;
  --color-our-little-secret-950: #2d0e1b;
}

SCSS

$our-little-secret: #aa4d71;
$our-little-secret-rgb: 170, 77, 113;
$our-little-secret-light: mix(#fff, $our-little-secret, 20%);
$our-little-secret-dark: mix(#000, $our-little-secret, 20%);

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