#4E90BC

CSS

:root {
  --canadian-tuxedo: #4e90bc;
  --canadian-tuxedo-rgb: 78 144 188;
  --canadian-tuxedo-oklch: oklch(0.628 0.095 239.8);
}

.element {
  color: var(--canadian-tuxedo);
  background-color: hsl(204 45% 52%);
  border-color: oklch(0.628 0.095 239.8);
}

Tailwind CSS v4

@theme {
  --color-canadian-tuxedo: #4e90bc;
  --color-canadian-tuxedo-50: #def9ff;
  --color-canadian-tuxedo-100: #cdedff;
  --color-canadian-tuxedo-200: #b1dafa;
  --color-canadian-tuxedo-300: #8cbee4;
  --color-canadian-tuxedo-400: #68a6d1;
  --color-canadian-tuxedo-500: #438ebe;
  --color-canadian-tuxedo-600: #3a78a1;
  --color-canadian-tuxedo-700: #2e6081;
  --color-canadian-tuxedo-800: #1e475f;
  --color-canadian-tuxedo-900: #143143;
  --color-canadian-tuxedo-950: #051d2b;
}

SCSS

$canadian-tuxedo: #4e90bc;
$canadian-tuxedo-rgb: 78, 144, 188;
$canadian-tuxedo-light: mix(#fff, $canadian-tuxedo, 20%);
$canadian-tuxedo-dark: mix(#000, $canadian-tuxedo, 20%);

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