#A15374

CSS

:root {
  --our-little-secret: #a15374;
  --our-little-secret-rgb: 161 83 116;
  --our-little-secret-oklch: oklch(0.546 0.11 354.6);
}

.element {
  color: var(--our-little-secret);
  background-color: hsl(335 32% 48%);
  border-color: oklch(0.546 0.11 354.6);
}

Tailwind CSS v4

@theme {
  --color-our-little-secret: #a15374;
  --color-our-little-secret-50: #ffe9f6;
  --color-our-little-secret-100: #ffd9e9;
  --color-our-little-secret-200: #fcc1d5;
  --color-our-little-secret-300: #e6a0b8;
  --color-our-little-secret-400: #d283a2;
  --color-our-little-secret-500: #be658a;
  --color-our-little-secret-600: #a05675;
  --color-our-little-secret-700: #81455e;
  --color-our-little-secret-800: #5f3146;
  --color-our-little-secret-900: #432130;
  --color-our-little-secret-950: #2b111d;
}

SCSS

$our-little-secret: #a15374;
$our-little-secret-rgb: 161, 83, 116;
$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);
}