#B35389

CSS

:root {
  --our-little-secret: #b35389;
  --our-little-secret-rgb: 179 83 137;
  --our-little-secret-oklch: oklch(0.578 0.139 347.5);
}

.element {
  color: var(--our-little-secret);
  background-color: hsl(326 39% 51%);
  border-color: oklch(0.578 0.139 347.5);
}

Tailwind CSS v4

@theme {
  --color-our-little-secret: #b35389;
  --color-our-little-secret-50: #ffe6fb;
  --color-our-little-secret-100: #ffd6ef;
  --color-our-little-secret-200: #ffbcdd;
  --color-our-little-secret-300: #ed99c2;
  --color-our-little-secret-400: #d97aae;
  --color-our-little-secret-500: #c65a97;
  --color-our-little-secret-600: #a74d80;
  --color-our-little-secret-700: #863d66;
  --color-our-little-secret-800: #632c4d;
  --color-our-little-secret-900: #461e35;
  --color-our-little-secret-950: #2d0d21;
}

SCSS

$our-little-secret: #b35389;
$our-little-secret-rgb: 179, 83, 137;
$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);
}