You have to be aware of your audience, but true to yourself. If you're a trial attorney who wants to have the jury's attention and it fits your personality, then there is not an issue with color/suits/patterns that would be considered heresy by the 5280s/G650s of the world. A former colleague used to wear a light gray pinstripe double-breasted linen suit regularly in trial when we were in federal court. From there it just got even more interesting.
It fit his personality. He could get away with it. Juries loved him regardless of the crazy suits he wore. Judges weren't offended by it because he had the skins already hanging on the wall.
My courtroom style is not as showy, and is reflected in my suits. Wear what you normally wear and you should be fine in front of the jury. Although I do limit myself to only two suits/two ties, rotated throughout trial regardless of length.