#36A0F5

CSS

:root {
  --fresh-blue-of-bel-air: #36a0f5;
  --fresh-blue-of-bel-air-rgb: 54 160 245;
  --fresh-blue-of-bel-air-oklch: oklch(0.686 0.157 247.3);
}

.element {
  color: var(--fresh-blue-of-bel-air);
  background-color: hsl(207 91% 59%);
  border-color: oklch(0.686 0.157 247.3);
}

Tailwind CSS v4

@theme {
  --color-fresh-blue-of-bel-air: #36a0f5;
  --color-fresh-blue-of-bel-air-50: #d3faff;
  --color-fresh-blue-of-bel-air-100: #c0edff;
  --color-fresh-blue-of-bel-air-200: #a0daff;
  --color-fresh-blue-of-bel-air-300: #75bdff;
  --color-fresh-blue-of-bel-air-400: #44a5f5;
  --color-fresh-blue-of-bel-air-500: #008be7;
  --color-fresh-blue-of-bel-air-600: #0076c3;
  --color-fresh-blue-of-bel-air-700: #005e9d;
  --color-fresh-blue-of-bel-air-800: #004674;
  --color-fresh-blue-of-bel-air-900: #003052;
  --color-fresh-blue-of-bel-air-950: #001c37;
}

SCSS

$fresh-blue-of-bel-air: #36a0f5;
$fresh-blue-of-bel-air-rgb: 54, 160, 245;
$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);
}