#C2DBDD

CSS

:root {
  --peek-a-blue: #c2dbdd;
  --peek-a-blue-rgb: 194 219 221;
  --peek-a-blue-oklch: oklch(0.874 0.027 202.5);
}

.element {
  color: var(--peek-a-blue);
  background-color: hsl(184 28% 81%);
  border-color: oklch(0.874 0.027 202.5);
}

Tailwind CSS v4

@theme {
  --color-peek-a-blue: #c2dbdd;
  --color-peek-a-blue-50: #edf8f9;
  --color-peek-a-blue-100: #deebec;
  --color-peek-a-blue-200: #c8d8d9;
  --color-peek-a-blue-300: #a8bcbe;
  --color-peek-a-blue-400: #8da3a5;
  --color-peek-a-blue-500: #728c8e;
  --color-peek-a-blue-600: #617678;
  --color-peek-a-blue-700: #4d5f60;
  --color-peek-a-blue-800: #384546;
  --color-peek-a-blue-900: #263030;
  --color-peek-a-blue-950: #151c1d;
}

SCSS

$peek-a-blue: #c2dbdd;
$peek-a-blue-rgb: 194, 219, 221;
$peek-a-blue-light: mix(#fff, $peek-a-blue, 20%);
$peek-a-blue-dark: mix(#000, $peek-a-blue, 20%);

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