Splendid Blue

CSS

:root {
  --splendid-blue: #7598b5;
  --splendid-blue-rgb: 117 152 181;
  --splendid-blue-oklch: oklch(0.664 0.058 243.8);
}

.element {
  color: var(--splendid-blue);
  background-color: hsl(207 30% 58%);
  border-color: oklch(0.664 0.058 243.8);
}

Tailwind CSS v4

@theme {
  --color-splendid-blue: #7598b5;
  --color-splendid-blue-50: #e8f7ff;
  --color-splendid-blue-100: #d9eafb;
  --color-splendid-blue-200: #c1d7ec;
  --color-splendid-blue-300: #a0bbd4;
  --color-splendid-blue-400: #81a3bf;
  --color-splendid-blue-500: #658baa;
  --color-splendid-blue-600: #567690;
  --color-splendid-blue-700: #445e73;
  --color-splendid-blue-800: #304555;
  --color-splendid-blue-900: #21303b;
  --color-splendid-blue-950: #101c25;
}

SCSS

$splendid-blue: #7598b5;
$splendid-blue-rgb: 117, 152, 181;
$splendid-blue-light: mix(#fff, $splendid-blue, 20%);
$splendid-blue-dark: mix(#000, $splendid-blue, 20%);

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