Why Do Some Colors Look the Same? | Color Vision Deficiency Explained

Why can red and green look clearly different to one person, but much harder to distinguish to another?

This short animation explains the basic idea behind color vision deficiency (CVD). Human color vision depends on overlapping responses from different cone cells in the eye. When one of those responses is altered, some colors can become much harder to distinguish.

For data visualization, the key lesson is simple: do not rely on color alone to communicate important information.

#DataVisualization #ColorTheory #Accessibility #ColorBlindness #DataViz