Polar Blue

CSS

:root {
  --polar-blue: #b3e0e7;
  --polar-blue-rgb: 179 224 231;
  --polar-blue-oklch: oklch(0.877 0.048 208);
}

.element {
  color: var(--polar-blue);
  background-color: hsl(188 52% 80%);
  border-color: oklch(0.877 0.048 208);
}

Tailwind CSS v4

@theme {
  --color-polar-blue: #b3e0e7;
  --color-polar-blue-50: #e6f9fd;
  --color-polar-blue-100: #d7edf1;
  --color-polar-blue-200: #bedadf;
  --color-polar-blue-300: #9cbfc5;
  --color-polar-blue-400: #7ea7ad;
  --color-polar-blue-500: #608f97;
  --color-polar-blue-600: #52797f;
  --color-polar-blue-700: #416166;
  --color-polar-blue-800: #2e474a;
  --color-polar-blue-900: #1f3134;
  --color-polar-blue-950: #0f1d1f;
}

SCSS

$polar-blue: #b3e0e7;
$polar-blue-rgb: 179, 224, 231;
$polar-blue-light: mix(#fff, $polar-blue, 20%);
$polar-blue-dark: mix(#000, $polar-blue, 20%);

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