I just received a k25 in bleu frida in epsom and it’s much much brighter than any of the pictures here. I have tried to photograph it but it photographs much darker than it is. I would agree that it’s a slightly darker version of blue Aztec. In epsom it’s almost neon blue it’s so bright and light. I have the VCA earrings in turquoise and it’s only a shade darker than the earrings. I would say blue Zanzibar is much more muted and darker. I have blue zellige Kelly in togo and that is much darker and the shade is significantly different