Sapphire Splendour

CSS

:root {
  --sapphire-splendour: #2425b9;
  --sapphire-splendour-rgb: 36 37 185;
  --sapphire-splendour-oklch: oklch(0.395 0.22 270.2);
}

.element {
  color: var(--sapphire-splendour);
  background-color: hsl(240 67% 43%);
  border-color: oklch(0.395 0.22 270.2);
}

Tailwind CSS v4

@theme {
  --color-sapphire-splendour: #2425b9;
  --color-sapphire-splendour-50: #dff2ff;
  --color-sapphire-splendour-100: #cee4ff;
  --color-sapphire-splendour-200: #b4ceff;
  --color-sapphire-splendour-300: #92adff;
  --color-sapphire-splendour-400: #6e90ff;
  --color-sapphire-splendour-500: #536fff;
  --color-sapphire-splendour-600: #465fe9;
  --color-sapphire-splendour-700: #384cbb;
  --color-sapphire-splendour-800: #23388d;
  --color-sapphire-splendour-900: #172764;
  --color-sapphire-splendour-950: #091445;
}

SCSS

$sapphire-splendour: #2425b9;
$sapphire-splendour-rgb: 36, 37, 185;
$sapphire-splendour-light: mix(#fff, $sapphire-splendour, 20%);
$sapphire-splendour-dark: mix(#000, $sapphire-splendour, 20%);

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