#A74E76

CSS

:root {
  --our-little-secret: #a74e76;
  --our-little-secret-rgb: 167 78 118;
  --our-little-secret-oklch: oklch(0.547 0.125 353.8);
}

.element {
  color: var(--our-little-secret);
  background-color: hsl(333 36% 48%);
  border-color: oklch(0.547 0.125 353.8);
}

Tailwind CSS v4

@theme {
  --color-our-little-secret: #a74e76;
  --color-our-little-secret-50: #ffe7f6;
  --color-our-little-secret-100: #ffd7e9;
  --color-our-little-secret-200: #ffbed6;
  --color-our-little-secret-300: #eb9cba;
  --color-our-little-secret-400: #d77ea4;
  --color-our-little-secret-500: #c45f8c;
  --color-our-little-secret-600: #a65177;
  --color-our-little-secret-700: #85415f;
  --color-our-little-secret-800: #622e47;
  --color-our-little-secret-900: #451f31;
  --color-our-little-secret-950: #2c0f1d;
}

SCSS

$our-little-secret: #a74e76;
$our-little-secret-rgb: 167, 78, 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);
}