#0083BF

CSS

:root {
  --mediterranean-blue: #0083bf;
  --mediterranean-blue-rgb: 0 131 191;
  --mediterranean-blue-oklch: oklch(0.581 0.131 239.2);
}

.element {
  color: var(--mediterranean-blue);
  background-color: hsl(199 100% 37%);
  border-color: oklch(0.581 0.131 239.2);
}

Tailwind CSS v4

@theme {
  --color-mediterranean-blue: #0083bf;
  --color-mediterranean-blue-50: #d5fbff;
  --color-mediterranean-blue-100: #c2eeff;
  --color-mediterranean-blue-200: #a2dcff;
  --color-mediterranean-blue-300: #77c0f4;
  --color-mediterranean-blue-400: #48a8e3;
  --color-mediterranean-blue-500: #0090d3;
  --color-mediterranean-blue-600: #007ab2;
  --color-mediterranean-blue-700: #04618f;
  --color-mediterranean-blue-800: #00486a;
  --color-mediterranean-blue-900: #00324a;
  --color-mediterranean-blue-950: #001d31;
}

SCSS

$mediterranean-blue: #0083bf;
$mediterranean-blue-rgb: 0, 131, 191;
$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);
}