#0083BC

CSS

:root {
  --mediterranean-blue: #0083bc;
  --mediterranean-blue-rgb: 0 131 188;
  --mediterranean-blue-oklch: oklch(0.579 0.128 237.8);
}

.element {
  color: var(--mediterranean-blue);
  background-color: hsl(198 100% 37%);
  border-color: oklch(0.579 0.128 237.8);
}

Tailwind CSS v4

@theme {
  --color-mediterranean-blue: #0083bc;
  --color-mediterranean-blue-50: #d5fbff;
  --color-mediterranean-blue-100: #c2efff;
  --color-mediterranean-blue-200: #a2dcff;
  --color-mediterranean-blue-300: #77c0f2;
  --color-mediterranean-blue-400: #49a9e1;
  --color-mediterranean-blue-500: #0090d0;
  --color-mediterranean-blue-600: #007aaf;
  --color-mediterranean-blue-700: #04628d;
  --color-mediterranean-blue-800: #004868;
  --color-mediterranean-blue-900: #003249;
  --color-mediterranean-blue-950: #001e30;
}

SCSS

$mediterranean-blue: #0083bc;
$mediterranean-blue-rgb: 0, 131, 188;
$mediterranean-blue-light: mix(#fff, $mediterranean-blue, 20%);
$mediterranean-blue-dark: mix(#000, $mediterranean-blue, 20%);

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