Brunnera Blue

CSS

:root {
  --brunnera-blue: #9ba9ca;
  --brunnera-blue-rgb: 155 169 202;
  --brunnera-blue-oklch: oklch(0.735 0.05 267.1);
}

.element {
  color: var(--brunnera-blue);
  background-color: hsl(222 31% 70%);
  border-color: oklch(0.735 0.05 267.1);
}

Tailwind CSS v4

@theme {
  --color-brunnera-blue: #9ba9ca;
  --color-brunnera-blue-50: #eff5ff;
  --color-brunnera-blue-100: #e1e8f9;
  --color-brunnera-blue-200: #cbd4eb;
  --color-brunnera-blue-300: #adb7d2;
  --color-brunnera-blue-400: #919ebd;
  --color-brunnera-blue-500: #7786a8;
  --color-brunnera-blue-600: #65718e;
  --color-brunnera-blue-700: #515a72;
  --color-brunnera-blue-800: #3a4254;
  --color-brunnera-blue-900: #282e3b;
  --color-brunnera-blue-950: #161b25;
}

SCSS

$brunnera-blue: #9ba9ca;
$brunnera-blue-rgb: 155, 169, 202;
$brunnera-blue-light: mix(#fff, $brunnera-blue, 20%);
$brunnera-blue-dark: mix(#000, $brunnera-blue, 20%);

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