#D9E2EC

CSS

:root {
  --iceberg: #d9e2ec;
  --iceberg-rgb: 217 226 236;
  --iceberg-oklch: oklch(0.909 0.017 250.9);
}

.element {
  color: var(--iceberg);
  background-color: hsl(212 33% 89%);
  border-color: oklch(0.909 0.017 250.9);
}

Tailwind CSS v4

@theme {
  --color-iceberg: #d9e2ec;
  --color-iceberg-50: #f2f5fa;
  --color-iceberg-100: #e4e8ed;
  --color-iceberg-200: #cfd5db;
  --color-iceberg-300: #b1b8c0;
  --color-iceberg-400: #979fa8;
  --color-iceberg-500: #7e8791;
  --color-iceberg-600: #6b727b;
  --color-iceberg-700: #555c62;
  --color-iceberg-800: #3e4348;
  --color-iceberg-900: #2b2e32;
  --color-iceberg-950: #181b1e;
}

SCSS

$iceberg: #d9e2ec;
$iceberg-rgb: 217, 226, 236;
$iceberg-light: mix(#fff, $iceberg, 20%);
$iceberg-dark: mix(#000, $iceberg, 20%);

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