The general consensus is to avoid food colorings. I would vape it only in small concentrations, if at all.
Both of those colorings are controversial, as are many of them. I'd advise looking them up, and deciding what you think.
Personally, I think that they are ridiculous even for use in food. Just a big 'Our market tests show that brand x sells better than ours, and the only real difference is that the color of their product is a bit more appealing than ours...' vicious cycle, if you ask me.