Frost Blue

CSS

:root {
  --frost-blue: #5d9aa6;
  --frost-blue-rgb: 93 154 166;
  --frost-blue-oklch: oklch(0.649 0.066 211.5);
}

.element {
  color: var(--frost-blue);
  background-color: hsl(190 29% 51%);
  border-color: oklch(0.649 0.066 211.5);
}

Tailwind CSS v4

@theme {
  --color-frost-blue: #5d9aa6;
  --color-frost-blue-50: #e1fbff;
  --color-frost-blue-100: #d0eef5;
  --color-frost-blue-200: #b5dce5;
  --color-frost-blue-300: #91c1cc;
  --color-frost-blue-400: #70a9b5;
  --color-frost-blue-500: #4d929f;
  --color-frost-blue-600: #427b87;
  --color-frost-blue-700: #35636c;
  --color-frost-blue-800: #25494f;
  --color-frost-blue-900: #183237;
  --color-frost-blue-950: #091e22;
}

SCSS

$frost-blue: #5d9aa6;
$frost-blue-rgb: 93, 154, 166;
$frost-blue-light: mix(#fff, $frost-blue, 20%);
$frost-blue-dark: mix(#000, $frost-blue, 20%);

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