According to latest research, we dogs can see in color but not in the way humans do. Unlike humans, dogs ONLY see two colors but it is still undecided as to which colors they are. It could be blue and yellow OR red and yellow... no one really knows for sure. What humans DO know for certain is that we dogs have less cones, or color vision cells, than humans, and hence the two colors rather than the full spectrum. So far, this sounds about right because I've never met a dog who can name the colors of all the crayolas in a box of 6.
Humans also know that dogs can see better in the dark than humans can because dogs have more rods, which detect low light.
So back to colors. Is it is blue and yellow OR red and yellow? If dogs can only see blue and yellow....we can't see brown, right? If dogs can only see red and yellow... we can't see brown, right?
A wise human once asked, "If a tree falls in the forest and no one hears it, does it make a sound?"
I ask you, dear friends: if the color brown does not exist, is there a guilty party?