#1680A2

CSS

:root {
  --ahoy-blue: #1680a2;
  --ahoy-blue-rgb: 22 128 162;
  --ahoy-blue-oklch: oklch(0.56 0.102 226.1);
}

.element {
  color: var(--ahoy-blue);
  background-color: hsl(195 76% 36%);
  border-color: oklch(0.56 0.102 226.1);
}

Tailwind CSS v4

@theme {
  --color-ahoy-blue: #1680a2;
  --color-ahoy-blue-50: #d8fcff;
  --color-ahoy-blue-100: #c6efff;
  --color-ahoy-blue-200: #a7def7;
  --color-ahoy-blue-300: #7ec2e1;
  --color-ahoy-blue-400: #54abcc;
  --color-ahoy-blue-500: #1d93ba;
  --color-ahoy-blue-600: #1d7d9d;
  --color-ahoy-blue-700: #18647e;
  --color-ahoy-blue-800: #0c4a5c;
  --color-ahoy-blue-900: #083341;
  --color-ahoy-blue-950: #001f29;
}

SCSS

$ahoy-blue: #1680a2;
$ahoy-blue-rgb: 22, 128, 162;
$ahoy-blue-light: mix(#fff, $ahoy-blue, 20%);
$ahoy-blue-dark: mix(#000, $ahoy-blue, 20%);

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