I agree with clearflight pied.
I see cobalt and grey. Since his tail appears to be black, I think he's cobalt blue-grey rather than mauve. But if his tail is navy blue, he's mauve. See Mauve Or Grey? - Cute Little Birdies Aviary
In the third photo, he looks violet, too. But I think violet would turn the body color darker??? So I'm not sure about violet.