This shade "Vibrato" is part of Chanel's Bleu Rhythm collection and is one of two new polishes, the other a navy blue. I absolutely love blue nails and although mint or pastel blue are regulars for me I also love royal and navy blue on nails.
Vibrato is a royal, almost primary blue. Pair this with a monochrome outfit and orange lip and you're good to go! Good news too, Chanel polishes no longer chip on me... I think there may have been a bit of reformulating going on.