Modern Blue

CSS

:root {
  --modern-blue: #bad1e9;
  --modern-blue-rgb: 186 209 233;
  --modern-blue-oklch: oklch(0.851 0.042 249.4);
}

.element {
  color: var(--modern-blue);
  background-color: hsl(211 52% 82%);
  border-color: oklch(0.851 0.042 249.4);
}

Tailwind CSS v4

@theme {
  --color-modern-blue: #bad1e9;
  --color-modern-blue-50: #edf6ff;
  --color-modern-blue-100: #dee9f6;
  --color-modern-blue-200: #c8d6e6;
  --color-modern-blue-300: #a8b9cd;
  --color-modern-blue-400: #8ca1b7;
  --color-modern-blue-500: #7189a1;
  --color-modern-blue-600: #607488;
  --color-modern-blue-700: #4d5d6d;
  --color-modern-blue-800: #374450;
  --color-modern-blue-900: #262f38;
  --color-modern-blue-950: #141b23;
}

SCSS

$modern-blue: #bad1e9;
$modern-blue-rgb: 186, 209, 233;
$modern-blue-light: mix(#fff, $modern-blue, 20%);
$modern-blue-dark: mix(#000, $modern-blue, 20%);

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