The fact of the matter is that realistic is usually very far from grey/brown. Have the people who say that even gone outside??

Far Cry 3 is super colorful. Also, it is a decent game.

The colors create a somber mood. Did you ever watch a Disney movie and notice towards the end that the sky has turned red? They're manipulaating your emotions with color.

Racing, racing, and one very cherry-picked Assassin's Creed image.

Edit: I'll grant ACIV, though. That looks nice.

I think you are. Because all of those are very very subtle and closer to brown/grey  than thier own colours.

Only the yellow light here is nice. And the white parts of the reflection in the fountain.

Infamous second son and Uncharted series are good example too.

I played Forza horizon 2 at a friend's and i had the impression that the visuals are a little "cartoony?"(i mean the colors).Specially in rain scenes.

Racing games are always best graphic.

Welcome to England.  Also, isn't that a painting?

Btw, COD:AW has some nice colour too.

Have to say, i'm a big fan of TO:1886's art direction. It does a good job of capturing both the dirty/sooty feel of london in the 1800s, as well as the glamour the 'elite' of the time were used too.

Well done.