#C2E0FF

CSS

:root {
  --broad-daylight: #c2e0ff;
  --broad-daylight-rgb: 194 224 255;
  --broad-daylight-oklch: oklch(0.895 0.053 249.3);
}

.element {
  color: var(--broad-daylight);
  background-color: hsl(210 100% 88%);
  border-color: oklch(0.895 0.053 249.3);
}

Tailwind CSS v4

@theme {
  --color-broad-daylight: #c2e0ff;
  --color-broad-daylight-50: #eaf7ff;
  --color-broad-daylight-100: #dbeafa;
  --color-broad-daylight-200: #c4d6eb;
  --color-broad-daylight-300: #a4bad2;
  --color-broad-daylight-400: #87a2bd;
  --color-broad-daylight-500: #6b89a9;
  --color-broad-daylight-600: #5b748e;
  --color-broad-daylight-700: #485d72;
  --color-broad-daylight-800: #344454;
  --color-broad-daylight-900: #232f3b;
  --color-broad-daylight-950: #121c25;
}

SCSS

$broad-daylight: #c2e0ff;
$broad-daylight-rgb: 194, 224, 255;
$broad-daylight-light: mix(#fff, $broad-daylight, 20%);
$broad-daylight-dark: mix(#000, $broad-daylight, 20%);

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