Our Midnight Blue wigs are solid, dark blue. Midnight Blue wigs are several shades darker than our Dark Blue wigs, not quite black but a nice deep blue color. Under natural light, the blue tone is very prominent but still rich and dark. Indoor fluorescent lighting has yellow tone and darkens the blue further, leaning more towards black (as seen here).
Direct lighting, like from a white flash, will increase the intensity of the blue in the fibers. If using a yellow flash or filtered flash there is a possibility of color variation.
Studio lighting will have the same effect as natural lighting if the studio lighting is white. All our Midnight Blue wigs are shot under studio lighting.