#A64E7D

CSS

:root {
  --our-little-secret: #a64e7d;
  --our-little-secret-rgb: 166 78 125;
  --our-little-secret-oklch: oklch(0.549 0.128 348.9);
}

.element {
  color: var(--our-little-secret);
  background-color: hsl(328 36% 48%);
  border-color: oklch(0.549 0.128 348.9);
}

Tailwind CSS v4

@theme {
  --color-our-little-secret: #a64e7d;
  --color-our-little-secret-50: #ffe7fa;
  --color-our-little-secret-100: #ffd7ed;
  --color-our-little-secret-200: #ffbedb;
  --color-our-little-secret-300: #ea9cc0;
  --color-our-little-secret-400: #d67eaa;
  --color-our-little-secret-500: #c25f94;
  --color-our-little-secret-600: #a4517d;
  --color-our-little-secret-700: #844064;
  --color-our-little-secret-800: #612e4b;
  --color-our-little-secret-900: #441f34;
  --color-our-little-secret-950: #2c0f1f;
}

SCSS

$our-little-secret: #a64e7d;
$our-little-secret-rgb: 166, 78, 125;
$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);
}