#3EA1EA

CSS

:root {
  --fresh-blue-of-bel-air: #3ea1ea;
  --fresh-blue-of-bel-air-rgb: 62 161 234;
  --fresh-blue-of-bel-air-oklch: oklch(0.684 0.141 244.6);
}

.element {
  color: var(--fresh-blue-of-bel-air);
  background-color: hsl(205 80% 58%);
  border-color: oklch(0.684 0.141 244.6);
}

Tailwind CSS v4

@theme {
  --color-fresh-blue-of-bel-air: #3ea1ea;
  --color-fresh-blue-of-bel-air-50: #d5faff;
  --color-fresh-blue-of-bel-air-100: #c2edff;
  --color-fresh-blue-of-bel-air-200: #a3dbff;
  --color-fresh-blue-of-bel-air-300: #79befc;
  --color-fresh-blue-of-bel-air-400: #4ba6eb;
  --color-fresh-blue-of-bel-air-500: #008ddc;
  --color-fresh-blue-of-bel-air-600: #0b77b9;
  --color-fresh-blue-of-bel-air-700: #0b5f95;
  --color-fresh-blue-of-bel-air-800: #00466f;
  --color-fresh-blue-of-bel-air-900: #02314e;
  --color-fresh-blue-of-bel-air-950: #001d34;
}

SCSS

$fresh-blue-of-bel-air: #3ea1ea;
$fresh-blue-of-bel-air-rgb: 62, 161, 234;
$fresh-blue-of-bel-air-light: mix(#fff, $fresh-blue-of-bel-air, 20%);
$fresh-blue-of-bel-air-dark: mix(#000, $fresh-blue-of-bel-air, 20%);

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