Posey Blue

CSS

:root {
  --posey-blue: #a5b4c6;
  --posey-blue-rgb: 165 180 198;
  --posey-blue-oklch: oklch(0.764 0.031 253);
}

.element {
  color: var(--posey-blue);
  background-color: hsl(213 22% 71%);
  border-color: oklch(0.764 0.031 253);
}

Tailwind CSS v4

@theme {
  --color-posey-blue: #a5b4c6;
  --color-posey-blue-50: #eff6fe;
  --color-posey-blue-100: #e1e9f2;
  --color-posey-blue-200: #ccd5e2;
  --color-posey-blue-300: #adb9c7;
  --color-posey-blue-400: #92a0b1;
  --color-posey-blue-500: #78889b;
  --color-posey-blue-600: #667383;
  --color-posey-blue-700: #515c69;
  --color-posey-blue-800: #3b434d;
  --color-posey-blue-900: #282e35;
  --color-posey-blue-950: #161b21;
}

SCSS

$posey-blue: #a5b4c6;
$posey-blue-rgb: 165, 180, 198;
$posey-blue-light: mix(#fff, $posey-blue, 20%);
$posey-blue-dark: mix(#000, $posey-blue, 20%);

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