It's best to wear a crazy colored or cheetah print bra. Bras are noticeable anyways, so who cares? lol jk
But this is a bit of a dilemna for most women lol
You'd think white would look best, but sometimes I feel it's even more noticeable than a black bra. I guess it's cuz my skin is tan, so it contrasts with the white. It depends on the transperency of the shirt. If it's thicker material, white actually works best. If it's "flimsy" or kinda sheer, then I feel like nude/skin color bras look less visible. (match the color to you're skin: if you're fair, wear peach or light peach. If you're tan like me, wear tan colored. If you're darker, wear whatever shade of brown necessary).
A bra similar to the colour of your skin. You'll see a lot of girls here saying white or "nude", but not everyone has the skin tone to fit those. Like I can't wear them because I'm black and the bra's would show through my shirt if I did. So it's best to find a bra either the exact same as your skin tone or something similar to it.
ahhh well honestly white shirts and bras are the worst enemies.. every single colour on earth will show under a white shirt if it is white , nude, black, grey, yellow, orange, purple, green, red or whatever colour there is it will definitely show i tried everything and they ALL show