While humans cannot naturally expand their color perception range, they can enhance their ability to distinguish between existing colors through training. This process is called color discrimination training:
- Artists and designers often develop better color differentiation through practice
- Some women are natural tetrachromats with an extra cone type, allowing them to see millions more colors
- Regular color perception exercises can improve your ability to notice subtle shade differences
However, it’s important to note that we cannot extend our vision beyond the visible spectrum (380-700 nanometers) without technological assistance.