Blue Garter

CSS

:root {
  --blue-garter: #a2b8ce;
  --blue-garter-rgb: 162 184 206;
  --blue-garter-oklch: oklch(0.773 0.04 248.3);
}

.element {
  color: var(--blue-garter);
  background-color: hsl(210 31% 72%);
  border-color: oklch(0.773 0.04 248.3);
}

Tailwind CSS v4

@theme {
  --color-blue-garter: #a2b8ce;
  --color-blue-garter-50: #edf6ff;
  --color-blue-garter-100: #dee9f5;
  --color-blue-garter-200: #c8d6e5;
  --color-blue-garter-300: #a9b9cc;
  --color-blue-garter-400: #8da1b5;
  --color-blue-garter-500: #7289a0;
  --color-blue-garter-600: #617487;
  --color-blue-garter-700: #4d5d6c;
  --color-blue-garter-800: #374450;
  --color-blue-garter-900: #262f37;
  --color-blue-garter-950: #141b22;
}

SCSS

$blue-garter: #a2b8ce;
$blue-garter-rgb: 162, 184, 206;
$blue-garter-light: mix(#fff, $blue-garter, 20%);
$blue-garter-dark: mix(#000, $blue-garter, 20%);

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