Seljuk Blue

CSS

:root {
  --seljuk-blue: #4488ee;
  --seljuk-blue-rgb: 68 136 238;
  --seljuk-blue-oklch: oklch(0.634 0.168 258.5);
}

.element {
  color: var(--seljuk-blue);
  background-color: hsl(216 83% 60%);
  border-color: oklch(0.634 0.168 258.5);
}

Tailwind CSS v4

@theme {
  --color-seljuk-blue: #4488ee;
  --color-seljuk-blue-50: #daf7ff;
  --color-seljuk-blue-100: #c8e9ff;
  --color-seljuk-blue-200: #abd5ff;
  --color-seljuk-blue-300: #85b7ff;
  --color-seljuk-blue-400: #5d9eff;
  --color-seljuk-blue-500: #3682f3;
  --color-seljuk-blue-600: #2f6fcd;
  --color-seljuk-blue-700: #2559a5;
  --color-seljuk-blue-800: #14417b;
  --color-seljuk-blue-900: #0d2d57;
  --color-seljuk-blue-950: #02193b;
}

SCSS

$seljuk-blue: #4488ee;
$seljuk-blue-rgb: 68, 136, 238;
$seljuk-blue-light: mix(#fff, $seljuk-blue, 20%);
$seljuk-blue-dark: mix(#000, $seljuk-blue, 20%);

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