Soulstone Blue

CSS

:root {
  --soulstone-blue: #0047ab;
  --soulstone-blue-rgb: 0 71 171;
  --soulstone-blue-oklch: oklch(0.428 0.172 259.7);
}

.element {
  color: var(--soulstone-blue);
  background-color: hsl(215 100% 34%);
  border-color: oklch(0.428 0.172 259.7);
}

Tailwind CSS v4

@theme {
  --color-soulstone-blue: #0047ab;
  --color-soulstone-blue-50: #daf6ff;
  --color-soulstone-blue-100: #c8e9ff;
  --color-soulstone-blue-200: #acd5ff;
  --color-soulstone-blue-300: #86b7ff;
  --color-soulstone-blue-400: #5e9dff;
  --color-soulstone-blue-500: #3981f6;
  --color-soulstone-blue-600: #316ecf;
  --color-soulstone-blue-700: #2758a7;
  --color-soulstone-blue-800: #16417c;
  --color-soulstone-blue-900: #0e2d58;
  --color-soulstone-blue-950: #02193c;
}

SCSS

$soulstone-blue: #0047ab;
$soulstone-blue-rgb: 0, 71, 171;
$soulstone-blue-light: mix(#fff, $soulstone-blue, 20%);
$soulstone-blue-dark: mix(#000, $soulstone-blue, 20%);

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