#25809D

CSS

:root {
  --ahoy-blue: #25809d;
  --ahoy-blue-rgb: 37 128 157;
  --ahoy-blue-oklch: oklch(0.561 0.093 223.9);
}

.element {
  color: var(--ahoy-blue);
  background-color: hsl(195 62% 38%);
  border-color: oklch(0.561 0.093 223.9);
}

Tailwind CSS v4

@theme {
  --color-ahoy-blue: #25809d;
  --color-ahoy-blue-50: #dafbff;
  --color-ahoy-blue-100: #c8efff;
  --color-ahoy-blue-200: #aaddf3;
  --color-ahoy-blue-300: #83c2dc;
  --color-ahoy-blue-400: #5baac7;
  --color-ahoy-blue-500: #2d93b4;
  --color-ahoy-blue-600: #297c98;
  --color-ahoy-blue-700: #20647a;
  --color-ahoy-blue-800: #144959;
  --color-ahoy-blue-900: #0d333e;
  --color-ahoy-blue-950: #011e28;
}

SCSS

$ahoy-blue: #25809d;
$ahoy-blue-rgb: 37, 128, 157;
$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);
}