Alpine Blue

CSS

:root {
  --alpine-blue: #dbe4e5;
  --alpine-blue-rgb: 219 228 229;
  --alpine-blue-oklch: oklch(0.912 0.01 204.9);
}

.element {
  color: var(--alpine-blue);
  background-color: hsl(186 16% 88%);
  border-color: oklch(0.912 0.01 204.9);
}

Tailwind CSS v4

@theme {
  --color-alpine-blue: #dbe4e5;
  --color-alpine-blue-50: #f2f6f6;
  --color-alpine-blue-100: #e4e9e9;
  --color-alpine-blue-200: #d0d5d6;
  --color-alpine-blue-300: #b2b9ba;
  --color-alpine-blue-400: #98a0a1;
  --color-alpine-blue-500: #7f8889;
  --color-alpine-blue-600: #6c7374;
  --color-alpine-blue-700: #565c5d;
  --color-alpine-blue-800: #3f4344;
  --color-alpine-blue-900: #2b2f2f;
  --color-alpine-blue-950: #181b1b;
}

SCSS

$alpine-blue: #dbe4e5;
$alpine-blue-rgb: 219, 228, 229;
$alpine-blue-light: mix(#fff, $alpine-blue, 20%);
$alpine-blue-dark: mix(#000, $alpine-blue, 20%);

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