Inky Blue

CSS

:root {
  --inky-blue: #4e7287;
  --inky-blue-rgb: 78 114 135;
  --inky-blue-oklch: oklch(0.533 0.053 234.7);
}

.element {
  color: var(--inky-blue);
  background-color: hsl(202 27% 42%);
  border-color: oklch(0.533 0.053 234.7);
}

Tailwind CSS v4

@theme {
  --color-inky-blue: #4e7287;
  --color-inky-blue-50: #e8f8ff;
  --color-inky-blue-100: #d8ebf8;
  --color-inky-blue-200: #c0d8e8;
  --color-inky-blue-300: #9fbccf;
  --color-inky-blue-400: #81a4b9;
  --color-inky-blue-500: #638ca4;
  --color-inky-blue-600: #55778b;
  --color-inky-blue-700: #435f6f;
  --color-inky-blue-800: #304652;
  --color-inky-blue-900: #203039;
  --color-inky-blue-950: #101c23;
}

SCSS

$inky-blue: #4e7287;
$inky-blue-rgb: 78, 114, 135;
$inky-blue-light: mix(#fff, $inky-blue, 20%);
$inky-blue-dark: mix(#000, $inky-blue, 20%);

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