Brittany Blue

CSS

:root {
  --brittany-blue: #4c7e86;
  --brittany-blue-rgb: 76 126 134;
  --brittany-blue-oklch: oklch(0.561 0.055 208.7);
}

.element {
  color: var(--brittany-blue);
  background-color: hsl(188 28% 41%);
  border-color: oklch(0.561 0.055 208.7);
}

Tailwind CSS v4

@theme {
  --color-brittany-blue: #4c7e86;
  --color-brittany-blue-50: #e4fafe;
  --color-brittany-blue-100: #d4edf2;
  --color-brittany-blue-200: #badbe2;
  --color-brittany-blue-300: #97c0c7;
  --color-brittany-blue-400: #78a8b0;
  --color-brittany-blue-500: #58919a;
  --color-brittany-blue-600: #4b7a82;
  --color-brittany-blue-700: #3c6268;
  --color-brittany-blue-800: #2a484c;
  --color-brittany-blue-900: #1d3235;
  --color-brittany-blue-950: #0c1e20;
}

SCSS

$brittany-blue: #4c7e86;
$brittany-blue-rgb: 76, 126, 134;
$brittany-blue-light: mix(#fff, $brittany-blue, 20%);
$brittany-blue-dark: mix(#000, $brittany-blue, 20%);

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