App
Maxwell – Color Mixer
Color mixing — physically correct, interactive.
Why do three colors suffice to represent the whole world? Maxwell makes color science tangible: mix colors, explore spectra, and understand why the yellow on your display isn't real yellow.
Features
Five experiences, one principle
Your eye has only three sensor types. Maxwell shows you why that's enough.
Color Mixing Canvas
Place colored dots and watch them blend. Toggle between additive mode (light on dark canvas) and subtractive mode (pigments on paper).
Emission Spectrum
See the spectrum of every mixed color in real time. Learn that "yellow" on a display is actually two separate light peaks at red and green wavelengths.
Cone Sensitivity
Understand how the three cone types (L/M/S) in your eye respond to different spectra — the bridge between physics and perception.
Metamerism Gallery
The aha moment: five completely different light sources produce the exact same perceived color. This is why modern display technology works.
Light Source Lab
Build custom light sources from Gaussian emission peaks. Adjust positions and intensities in real time and watch the spectrum, cone excitation, and perceived color update instantly.
From RGB to metamerism
Maxwell is built on real color physics: Gaussian spectral profiles, Stockman & Sharpe cone fundamentals, and correct LMS-to-RGB conversion. The simplifications are deliberate — physically plausible, yet accessible enough for education.
- Named after James Clerk Maxwell, who experimentally proved trichromacy in 1855
- English and German
- No ads, no in-app purchases
- Suitable for ages 4+
On the App Store
For Mac, iPad, and iPhone. One-time purchase for €2.99 — no ads, no in-app purchases, no data collection.