7 minutes ago
This seems pretty uncertain. I spotted a caterpillar, laying on some rocks, beside the sand and the water of the beach.
The caterpillar is reflecting wavelengths of light that are radiating green (520-560 nanometers) and yellow (560-590 nanometers). The caterpillar is also black, but black is not a certain color. The different concentrations of black and white, are defined by the amount of light being absorbed or reflected. As black objects absorbs nearly all light, we can only spot the remaining black, and not the colors that are being absorbed. If an object had a concentration of 100% black, we would not be able to picture it since no light is being reflected. The black objects around us like our clothes, coal and so on, are still visible due to some reflection of light. It's completely reversed when taking a look at white; which reflects nearly all light, leaving us with the remaining white. But since no black object totally absorbs all light, and no white object reflects all light, we are still able to see the black and white objects. If an object absorbed all light, it would be completely invisible for us to spot it. The object would not be invisible itself, but it would be impossible to spot it due to no reflection of light. Speaking of being invisible as camouflage, you would have to contain the same wavelengths as your surroundings to become invisible in this specific spot. If an object reflected all light, it would be like looking at ourselves in the mirror. Therefore, a mirror creates a picture of the objects in front of it.