#FFEFFC

CSS

:root {
  --partial-pink: #ffeffc;
  --partial-pink-rgb: 255 239 252;
  --partial-pink-oklch: oklch(0.968 0.024 331.9);
}

.element {
  color: var(--partial-pink);
  background-color: hsl(311 100% 97%);
  border-color: oklch(0.968 0.024 331.9);
}

Tailwind CSS v4

@theme {
  --color-partial-pink: #ffeffc;
  --color-partial-pink-50: #faf3f8;
  --color-partial-pink-100: #ede5eb;
  --color-partial-pink-200: #dbd1d8;
  --color-partial-pink-300: #c0b3bd;
  --color-partial-pink-400: #a799a5;
  --color-partial-pink-500: #90818d;
  --color-partial-pink-600: #7a6d78;
  --color-partial-pink-700: #625760;
  --color-partial-pink-800: #473f46;
  --color-partial-pink-900: #312c31;
  --color-partial-pink-950: #1d191d;
}

SCSS

$partial-pink: #ffeffc;
$partial-pink-rgb: 255, 239, 252;
$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);
}