my guess is that in the manga, they wanted her to have purple hair, and when they looked at it in the anime, they decided that blue might be better to go with. that is my opinion. i have been curious about that too.
posted over a year ago
Hhmm,I thought so, but I've never found a real explanation. Why did the animators change her hair color? Moreover,it would make 더 많이 sense as to why Trunks has purple hair.
I have some pages in the 망가 colored 의해 Toriyama and I can say that there are many 색깔 that do not match the anime, probably the TOEI 애니메이션 had decided to change them because with the original colours the 아니메 would have an older look. For example nam have a 담홍색, 핑크 dress in 망가 :)
posted over a year ago
Yeah indeed in some coloured pages Bulma has purple hair, then blue 또는 gray, even red..! but in the illustations she has (almost) always purple hair. It's strange!