Ash in the Air

CSS

:root {
  --ash-in-the-air: #d9dde5;
  --ash-in-the-air-rgb: 217 221 229;
  --ash-in-the-air-oklch: oklch(0.897 0.012 264.5);
}

.element {
  color: var(--ash-in-the-air);
  background-color: hsl(220 19% 87%);
  border-color: oklch(0.897 0.012 264.5);
}

Tailwind CSS v4

@theme {
  --color-ash-in-the-air: #d9dde5;
  --color-ash-in-the-air-50: #f3f5f9;
  --color-ash-in-the-air-100: #e6e8ec;
  --color-ash-in-the-air-200: #d2d4d9;
  --color-ash-in-the-air-300: #b4b7be;
  --color-ash-in-the-air-400: #9b9ea6;
  --color-ash-in-the-air-500: #82868e;
  --color-ash-in-the-air-600: #6e7278;
  --color-ash-in-the-air-700: #585b60;
  --color-ash-in-the-air-800: #404247;
  --color-ash-in-the-air-900: #2c2e31;
  --color-ash-in-the-air-950: #191b1d;
}

SCSS

$ash-in-the-air: #d9dde5;
$ash-in-the-air-rgb: 217, 221, 229;
$ash-in-the-air-light: mix(#fff, $ash-in-the-air, 20%);
$ash-in-the-air-dark: mix(#000, $ash-in-the-air, 20%);

.element {
  color: $ash-in-the-air;
  box-shadow: 0 0 0 2px rgba($ash-in-the-air, 0.35);
}