Functional Blue

CSS

:root {
  --functional-blue: #3f6086;
  --functional-blue-rgb: 63 96 134;
  --functional-blue-oklch: oklch(0.481 0.073 252.7);
}

.element {
  color: var(--functional-blue);
  background-color: hsl(212 36% 39%);
  border-color: oklch(0.481 0.073 252.7);
}

Tailwind CSS v4

@theme {
  --color-functional-blue: #3f6086;
  --color-functional-blue-50: #e8f7ff;
  --color-functional-blue-100: #d8eaff;
  --color-functional-blue-200: #c0d6f4;
  --color-functional-blue-300: #9fbadd;
  --color-functional-blue-400: #80a1c9;
  --color-functional-blue-500: #6389b6;
  --color-functional-blue-600: #547499;
  --color-functional-blue-700: #435d7b;
  --color-functional-blue-800: #2f445b;
  --color-functional-blue-900: #202f40;
  --color-functional-blue-950: #0f1c29;
}

SCSS

$functional-blue: #3f6086;
$functional-blue-rgb: 63, 96, 134;
$functional-blue-light: mix(#fff, $functional-blue, 20%);
$functional-blue-dark: mix(#000, $functional-blue, 20%);

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