Ingénue Blue

CSS

:root {
  --ingenue-blue: #334c5d;
  --ingenue-blue-rgb: 51 76 93;
  --ingenue-blue-oklch: oklch(0.404 0.042 238.9);
}

.element {
  color: var(--ingenue-blue);
  background-color: hsl(204 29% 28%);
  border-color: oklch(0.404 0.042 238.9);
}

Tailwind CSS v4

@theme {
  --color-ingenue-blue: #334c5d;
  --color-ingenue-blue-50: #ebf7ff;
  --color-ingenue-blue-100: #dceaf5;
  --color-ingenue-blue-200: #c5d7e5;
  --color-ingenue-blue-300: #a5bbcb;
  --color-ingenue-blue-400: #88a2b5;
  --color-ingenue-blue-500: #6d8b9f;
  --color-ingenue-blue-600: #5c7587;
  --color-ingenue-blue-700: #4a5e6c;
  --color-ingenue-blue-800: #35454f;
  --color-ingenue-blue-900: #243037;
  --color-ingenue-blue-950: #131c22;
}

SCSS

$ingenue-blue: #334c5d;
$ingenue-blue-rgb: 51, 76, 93;
$ingenue-blue-light: mix(#fff, $ingenue-blue, 20%);
$ingenue-blue-dark: mix(#000, $ingenue-blue, 20%);

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