According to Professor Sam Sweet, "(savannah) Monitors are also specialized compared to other lizards in having acute long-distance (color) vision, sensitive hearing, and very well-developed senses of smell and tongue-based vomeronasal organ..."

It seems savannah's have the entire color spectrum that they are aware of.

According to Professor Sam Sweet, "(savannah) Monitors are also specialized compared to other lizards in having acute long-distance (color) vision, sensitive hearing, and very well-developed senses of smell and tongue-based vomeronasal organ..."

It seems that savannah's have the entire color spectrum available to them.