#217E9D

CSS

:root {
  --ahoy-blue: #217e9d;
  --ahoy-blue-rgb: 33 126 157;
  --ahoy-blue-oklch: oklch(0.555 0.095 225.4);
}

.element {
  color: var(--ahoy-blue);
  background-color: hsl(195 65% 37%);
  border-color: oklch(0.555 0.095 225.4);
}

Tailwind CSS v4

@theme {
  --color-ahoy-blue: #217e9d;
  --color-ahoy-blue-50: #dafbff;
  --color-ahoy-blue-100: #c8efff;
  --color-ahoy-blue-200: #aaddf4;
  --color-ahoy-blue-300: #82c2de;
  --color-ahoy-blue-400: #5aaac9;
  --color-ahoy-blue-500: #2b93b6;
  --color-ahoy-blue-600: #277c99;
  --color-ahoy-blue-700: #20637b;
  --color-ahoy-blue-800: #13495a;
  --color-ahoy-blue-900: #0c333f;
  --color-ahoy-blue-950: #011e28;
}

SCSS

$ahoy-blue: #217e9d;
$ahoy-blue-rgb: 33, 126, 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);
}