Some will say they're fine, while others would give a resounding no. It all really depends on what look you're after.
I've seen both look quite pretty, but it's been paired with a pencil and/or gloss to keep it from looking too pale or milky. Blankety is an amplified and Snob is satin, which means they're both pretty opaque straight from the tube. Another alternative is to dab the colour on for a more sheer (and easily wearable) option.