Illamasqua Cameo Nail Varnish ($14.00 for 0.50 fl. oz.) is described as a "cornflower blue." (Sephora has it listed as "periwinkle blue.") It's a dusty, cornflower blue that leans noticeably purple. It almost more purple than blue, but...

Illamasqua Noble Nail Varnish ($14.00 for 0.50 fl. oz.) is described as a "turquoise blue." (Sephora has it listed as "robin egg blue.") It's a brightened, light-medium blue with a hint of turquoise in it, which gives it that robin's egg...