In case you missed the memo (and you might have, since memos aren’t exactly efficient) cobalt blue is having a moment right now. It’s going to be one of the hottest colors for spring, and definitely one we are all rocking with increasing frequency. When we shot this ombre manicure tutorial, we knew it had to be blue. Nothing looks as good as a lighter blue merging into a strong cobalt. Delicious. Grab a sponge and some blues, and get painting!