Zydeco Blue

CSS

:root {
  --zydeco-blue: #2b61a0;
  --zydeco-blue-rgb: 43 97 160;
  --zydeco-blue-oklch: oklch(0.488 0.116 254.1);
}

.element {
  color: var(--zydeco-blue);
  background-color: hsl(212 58% 40%);
  border-color: oklch(0.488 0.116 254.1);
}

Tailwind CSS v4

@theme {
  --color-zydeco-blue: #2b61a0;
  --color-zydeco-blue-50: #e0f7ff;
  --color-zydeco-blue-100: #cfeaff;
  --color-zydeco-blue-200: #b4d7ff;
  --color-zydeco-blue-300: #90baf3;
  --color-zydeco-blue-400: #6da1e2;
  --color-zydeco-blue-500: #4b88d1;
  --color-zydeco-blue-600: #4173b1;
  --color-zydeco-blue-700: #335c8e;
  --color-zydeco-blue-800: #224469;
  --color-zydeco-blue-900: #162f4a;
  --color-zydeco-blue-950: #071b31;
}

SCSS

$zydeco-blue: #2b61a0;
$zydeco-blue-rgb: 43, 97, 160;
$zydeco-blue-light: mix(#fff, $zydeco-blue, 20%);
$zydeco-blue-dark: mix(#000, $zydeco-blue, 20%);

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