While visual arts and linguistics are both creative fields, skill with one isn’t necessarily a prerequisite for the other. After all, as long as you can look at three hues and pick the one best suited for the picture you’re painting, it doesn’t really matter if you know whether to call it fuchsia or periwinkle.
As a matter of fact, some would argue that coupling names and colors limits the imaginations of budding young artists, which is why these two Japanese designers have produced a set of paints for children that have no names on their labels, only splotches of their base component colors.