A more neutral trim color would help compliment the siding and roof colors.

I really like the exterior colors of your house. Perhaps you could replace the entry rail with a wood one for added presence. You could do a lot with new landscaping, changing the shape of the foundation beds and adding some flowering plants of all the same color. If you have the space, it would be good to plant a small tree to hide the pipe. You can get a huge pay-off by adding and using plants and color to your advantage.

I think a darker neutral color (taupe, maybe?) for the siding and a lighter (cream) color for the trim would work. Also, you could change that railing to a wood railing and paint to match the trim. Then, I think some loropetalum bushes cut low in the front would be nice to add some low maintenance greenery and a little color (because they have beautiful purple/green leaves and flowers).

Idea Pic
The color listed for this house is Mineral Alloy 1622 by BM