Its a decision ull have to make yourself. Ull get owners here telling u all 3 colors are good so pointless to ask.

But in my opinion, the Bright Silver is the easiest to maintain. Not washing for 3 weeks is fine and isnt noticeable. Plus if ure in an accident, its the easiest color to match. Also, the silver has this brilliant shade of color when parked under a night street light. Looks very classy and surely is a standout even during the day with the DRL's on.

The Pearl White is also good but somehow i feel it doesnt show off the car enough. The Optima Pearl is slightly different from the Toyota version which i prefer.

But i think the Optima doesnt look good in dark colors because the car has got a really good design and good designs go well with lighter colors. Also makes the sports rims stand out.

Agree with u. My opinion, silver is too common, so I go for white. Like u say, pearl white bring out the good design of K5.