#AA4C76

CSS

:root {
  --our-little-secret: #aa4c76;
  --our-little-secret-rgb: 170 76 118;
  --our-little-secret-oklch: oklch(0.549 0.132 354.3);
}

.element {
  color: var(--our-little-secret);
  background-color: hsl(333 38% 48%);
  border-color: oklch(0.549 0.132 354.3);
}

Tailwind CSS v4

@theme {
  --color-our-little-secret: #aa4c76;
  --color-our-little-secret-50: #ffe6f6;
  --color-our-little-secret-100: #ffd6e9;
  --color-our-little-secret-200: #ffbdd6;
  --color-our-little-secret-300: #ee9bb9;
  --color-our-little-secret-400: #da7ca3;
  --color-our-little-secret-500: #c75c8c;
  --color-our-little-secret-600: #a84f76;
  --color-our-little-secret-700: #873f5e;
  --color-our-little-secret-800: #642d47;
  --color-our-little-secret-900: #461e31;
  --color-our-little-secret-950: #2d0e1d;
}

SCSS

$our-little-secret: #aa4c76;
$our-little-secret-rgb: 170, 76, 118;
$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);
}