Eton Blue

CSS

:root {
  --eton-blue: #aad4d1;
  --eton-blue-rgb: 170 212 209;
  --eton-blue-oklch: oklch(0.839 0.044 191);
}

.element {
  color: var(--eton-blue);
  background-color: hsl(176 33% 75%);
  border-color: oklch(0.839 0.044 191);
}

Tailwind CSS v4

@theme {
  --color-eton-blue: #aad4d1;
  --color-eton-blue-50: #e8f9f8;
  --color-eton-blue-100: #d8edec;
  --color-eton-blue-200: #c0dbd9;
  --color-eton-blue-300: #9ebfbd;
  --color-eton-blue-400: #81a7a5;
  --color-eton-blue-500: #63908d;
  --color-eton-blue-600: #557a77;
  --color-eton-blue-700: #43615f;
  --color-eton-blue-800: #304745;
  --color-eton-blue-900: #213230;
  --color-eton-blue-950: #101d1c;
}

SCSS

$eton-blue: #aad4d1;
$eton-blue-rgb: 170, 212, 209;
$eton-blue-light: mix(#fff, $eton-blue, 20%);
$eton-blue-dark: mix(#000, $eton-blue, 20%);

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