Pale Grey Blue

CSS

:root {
  --pale-grey-blue: #d4e2eb;
  --pale-grey-blue-rgb: 212 226 235;
  --pale-grey-blue-oklch: oklch(0.905 0.019 235.7);
}

.element {
  color: var(--pale-grey-blue);
  background-color: hsl(203 37% 88%);
  border-color: oklch(0.905 0.019 235.7);
}

Tailwind CSS v4

@theme {
  --color-pale-grey-blue: #d4e2eb;
  --color-pale-grey-blue-50: #f0f6fa;
  --color-pale-grey-blue-100: #e2e9ee;
  --color-pale-grey-blue-200: #cdd6dc;
  --color-pale-grey-blue-300: #afb9c0;
  --color-pale-grey-blue-400: #94a1a9;
  --color-pale-grey-blue-500: #7a8992;
  --color-pale-grey-blue-600: #68747b;
  --color-pale-grey-blue-700: #535c62;
  --color-pale-grey-blue-800: #3c4448;
  --color-pale-grey-blue-900: #292f32;
  --color-pale-grey-blue-950: #171b1e;
}

SCSS

$pale-grey-blue: #d4e2eb;
$pale-grey-blue-rgb: 212, 226, 235;
$pale-grey-blue-light: mix(#fff, $pale-grey-blue, 20%);
$pale-grey-blue-dark: mix(#000, $pale-grey-blue, 20%);

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