Tetrachromacy

Tetrachromacy is the condition of possessing four independent channels for conveying color information, or possessing four different types of cone cells in the eye. 

Organisms with tetrachromacy are called tetrachromats.

In tetrachromatic organisms, the sensory color space is four-dimensional, meaning that to match the sensory effect of arbitrarily chosen spectra of light within their visible spectrum requires mixtures of at least four different primary colors.

Of course if we "see" like the normal people we can only have an Idea of this beautiful condition. But let's talk about Concetta Antico Having  a beautiful name a long with a beautiful eye condition can make only an incredible Artist.