Pure Blue

CSS

:root {
  --pure-blue: #0203e2;
  --pure-blue-rgb: 2 3 226;
  --pure-blue-oklch: oklch(0.414 0.285 264.2);
}

.element {
  color: var(--pure-blue);
  background-color: hsl(240 98% 45%);
  border-color: oklch(0.414 0.285 264.2);
}

Tailwind CSS v4

@theme {
  --color-pure-blue: #0203e2;
  --color-pure-blue-50: #cff4ff;
  --color-pure-blue-100: #bce5ff;
  --color-pure-blue-200: #9bceff;
  --color-pure-blue-300: #73abff;
  --color-pure-blue-400: #448bff;
  --color-pure-blue-500: #1c64ff;
  --color-pure-blue-600: #1956ff;
  --color-pure-blue-700: #1345d7;
  --color-pure-blue-800: #0033a2;
  --color-pure-blue-900: #002373;
  --color-pure-blue-950: #000f51;
}

SCSS

$pure-blue: #0203e2;
$pure-blue-rgb: 2, 3, 226;
$pure-blue-light: mix(#fff, $pure-blue, 20%);
$pure-blue-dark: mix(#000, $pure-blue, 20%);

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