#FFF0FF

CSS

:root {
  --partial-pink: #fff0ff;
  --partial-pink-rgb: 255 240 255;
  --partial-pink-oklch: oklch(0.971 0.025 325.8);
}

.element {
  color: var(--partial-pink);
  background-color: hsl(300 100% 97%);
  border-color: oklch(0.971 0.025 325.8);
}

Tailwind CSS v4

@theme {
  --color-partial-pink: #fff0ff;
  --color-partial-pink-50: #f9f3f9;
  --color-partial-pink-100: #ede5ec;
  --color-partial-pink-200: #dad1da;
  --color-partial-pink-300: #bfb3be;
  --color-partial-pink-400: #a79aa7;
  --color-partial-pink-500: #8f818f;
  --color-partial-pink-600: #796d79;
  --color-partial-pink-700: #615761;
  --color-partial-pink-800: #474047;
  --color-partial-pink-900: #312c31;
  --color-partial-pink-950: #1d191d;
}

SCSS

$partial-pink: #fff0ff;
$partial-pink-rgb: 255, 240, 255;
$partial-pink-light: mix(#fff, $partial-pink, 20%);
$partial-pink-dark: mix(#000, $partial-pink, 20%);

.element {
  color: $partial-pink;
  box-shadow: 0 0 0 2px rgba($partial-pink, 0.35);
}