Feathery Blue

CSS

:root {
  --feathery-blue: #abc2c7;
  --feathery-blue-rgb: 171 194 199;
  --feathery-blue-oklch: oklch(0.798 0.026 212.3);
}

.element {
  color: var(--feathery-blue);
  background-color: hsl(191 20% 73%);
  border-color: oklch(0.798 0.026 212.3);
}

Tailwind CSS v4

@theme {
  --color-feathery-blue: #abc2c7;
  --color-feathery-blue-50: #edf7fa;
  --color-feathery-blue-100: #dfeaed;
  --color-feathery-blue-200: #c8d7db;
  --color-feathery-blue-300: #a9bbc0;
  --color-feathery-blue-400: #8ea3a7;
  --color-feathery-blue-500: #738b90;
  --color-feathery-blue-600: #62767a;
  --color-feathery-blue-700: #4e5e62;
  --color-feathery-blue-800: #384547;
  --color-feathery-blue-900: #263031;
  --color-feathery-blue-950: #151c1d;
}

SCSS

$feathery-blue: #abc2c7;
$feathery-blue-rgb: 171, 194, 199;
$feathery-blue-light: mix(#fff, $feathery-blue, 20%);
$feathery-blue-dark: mix(#000, $feathery-blue, 20%);

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