How do dead chameleons look?

 In general, dead chameleons may appear dull greyish or brownish in color due to the loss of vibrancy in their pigments as they become inactive due to the loss of chromatophores. In some cases, when a chameleon experiences stress or trauma before death, the color may turn darker due to the release of stress hormones that affect its chromatophores.

It is the chromatophores in which the coloration of a chameleon is primarily controlled by pigments that are responsible for the production of different colors. A chameleon's nervous system controls the chromatophores and they respond to a range of stimuli, including temperature, light, and mood, by responding to their nervous system.

As a result, after death, the chameleon's nervous system will cease to function, which renders its chromatophores inactive, and the chameleon will lose its ability to change colors and will remain the color it is currently in.

As it is important to note, the exact color of a dead chameleon will depend on a number of factors, including the original coloration of its surrounding environment and how long it has been alive. A dead chameleon may often take on a greyish color as its vibrant hues fade away without the active regulation of chromatophores.