Parlour Blue

CSS

:root {
  --parlour-blue: #465f7e;
  --parlour-blue-rgb: 70 95 126;
  --parlour-blue-oklch: oklch(0.479 0.059 254.2);
}

.element {
  color: var(--parlour-blue);
  background-color: hsl(213 29% 38%);
  border-color: oklch(0.479 0.059 254.2);
}

Tailwind CSS v4

@theme {
  --color-parlour-blue: #465f7e;
  --color-parlour-blue-50: #ebf6ff;
  --color-parlour-blue-100: #dce9fc;
  --color-parlour-blue-200: #c4d6ee;
  --color-parlour-blue-300: #a4b9d6;
  --color-parlour-blue-400: #87a1c1;
  --color-parlour-blue-500: #6b89ad;
  --color-parlour-blue-600: #5b7492;
  --color-parlour-blue-700: #495c75;
  --color-parlour-blue-800: #344456;
  --color-parlour-blue-900: #232f3c;
  --color-parlour-blue-950: #121b26;
}

SCSS

$parlour-blue: #465f7e;
$parlour-blue-rgb: 70, 95, 126;
$parlour-blue-light: mix(#fff, $parlour-blue, 20%);
$parlour-blue-dark: mix(#000, $parlour-blue, 20%);

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