Blue Dart

CSS

:root {
  --blue-dart: #518fd1;
  --blue-dart-rgb: 81 143 209;
  --blue-dart-oklch: oklch(0.637 0.119 251.5);
}

.element {
  color: var(--blue-dart);
  background-color: hsl(211 58% 57%);
  border-color: oklch(0.637 0.119 251.5);
}

Tailwind CSS v4

@theme {
  --color-blue-dart: #518fd1;
  --color-blue-dart-50: #def8ff;
  --color-blue-dart-100: #cdebff;
  --color-blue-dart-200: #b1d8ff;
  --color-blue-dart-300: #8cbbf3;
  --color-blue-dart-400: #68a3e2;
  --color-blue-dart-500: #4489d2;
  --color-blue-dart-600: #3a74b1;
  --color-blue-dart-700: #2e5d8e;
  --color-blue-dart-800: #1e456a;
  --color-blue-dart-900: #14304a;
  --color-blue-dart-950: #051c31;
}

SCSS

$blue-dart: #518fd1;
$blue-dart-rgb: 81, 143, 209;
$blue-dart-light: mix(#fff, $blue-dart, 20%);
$blue-dart-dark: mix(#000, $blue-dart, 20%);

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