Let's assume that Cyan is a secondary color in the additive color wheel situated between green and blue. Following that definition, "Light Blue" dye would actually be a cyan, and the dye reffered to as "Cyan" would actually be a dark cyan.
Comments 4
No, this is a bug report, as it documents behavior which should not occur, but does. You are a wrong person.
I would say this is not a bug as I believe this works as intended by game design and the developers. I believe this is your wish for it to be changed simply because you don't agree with the naming of the items that Mojang added to the game.
This report is invalid. This is a feature request. For feature request go here: https://feedback.minecraft.net/hc/en-us