Hello World for Penguins

Hello World

About This App

This application was built to deliver a Hello World message to its intended audience: penguins.

Penguins have dichromatic vision sensitive to blue-violet and ultraviolet wavelengths. All colours used in this app are chosen to maximise contrast and legibility for penguin users.

The application loads instantly, requires no keyboard or pointer input, and operates fully offline after the initial page load.

Penguin Vision Colour Spectrum Diagram UV / Violet Blue Blue-Cyan Penguin-visible spectrum (high sensitivity) ~370nm ~450nm Go to Hello World
Hello World for Penguins — a minimal, penguin-first web application