Blue Tulle

CSS

:root {
  --blue-tulle: #c9dbe5;
  --blue-tulle-rgb: 201 219 229;
  --blue-tulle-oklch: oklch(0.881 0.024 231.9);
}

.element {
  color: var(--blue-tulle);
  background-color: hsl(201 35% 84%);
  border-color: oklch(0.881 0.024 231.9);
}

Tailwind CSS v4

@theme {
  --color-blue-tulle: #c9dbe5;
  --color-blue-tulle-50: #eff6fb;
  --color-blue-tulle-100: #e1e9ef;
  --color-blue-tulle-200: #cbd6dd;
  --color-blue-tulle-300: #acbac2;
  --color-blue-tulle-400: #91a1aa;
  --color-blue-tulle-500: #778993;
  --color-blue-tulle-600: #65747d;
  --color-blue-tulle-700: #515d64;
  --color-blue-tulle-800: #3a4449;
  --color-blue-tulle-900: #282f33;
  --color-blue-tulle-950: #161c1e;
}

SCSS

$blue-tulle: #c9dbe5;
$blue-tulle-rgb: 201, 219, 229;
$blue-tulle-light: mix(#fff, $blue-tulle, 20%);
$blue-tulle-dark: mix(#000, $blue-tulle, 20%);

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