#B4E4EC

CSS

:root {
  --tip-of-the-iceberg: #b4e4ec;
  --tip-of-the-iceberg-rgb: 180 228 236;
  --tip-of-the-iceberg-oklch: oklch(0.888 0.051 208.8);
}

.element {
  color: var(--tip-of-the-iceberg);
  background-color: hsl(189 60% 82%);
  border-color: oklch(0.888 0.051 208.8);
}

Tailwind CSS v4

@theme {
  --color-tip-of-the-iceberg: #b4e4ec;
  --color-tip-of-the-iceberg-50: #e6f9fd;
  --color-tip-of-the-iceberg-100: #d6edf1;
  --color-tip-of-the-iceberg-200: #bddbe0;
  --color-tip-of-the-iceberg-300: #9abfc6;
  --color-tip-of-the-iceberg-400: #7ca7ae;
  --color-tip-of-the-iceberg-500: #5d9098;
  --color-tip-of-the-iceberg-600: #4f7a81;
  --color-tip-of-the-iceberg-700: #3f6167;
  --color-tip-of-the-iceberg-800: #2d484b;
  --color-tip-of-the-iceberg-900: #1e3234;
  --color-tip-of-the-iceberg-950: #0e1d20;
}

SCSS

$tip-of-the-iceberg: #b4e4ec;
$tip-of-the-iceberg-rgb: 180, 228, 236;
$tip-of-the-iceberg-light: mix(#fff, $tip-of-the-iceberg, 20%);
$tip-of-the-iceberg-dark: mix(#000, $tip-of-the-iceberg, 20%);

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