Unless you have a very beautiful garage door I would paint it a color that blends with the brick IMO they are all too much in your face as is I loved it when the garage was at the back of the house not front and center

If you will like to go little different than Indian / traditional one, mint green colour is in trend and goes well with brick colour walls. Looks good if you have white appliances, crockery and some other elements that are visible with it. (Sourced from google images) https://goo.gl/images/Wyu1kR

Hi there - I think if you are able to post any photographs at all with your question, you will have loads more helpful suggestions. People around here are just so visual! 🌈👍

Since your slab is white and the floor is beige, I would suggest bold colours. It could be a deep blue or a dark grey or a bright yellow for that matter. The exact choice of colour would depend on your walls and the personality of your other rooms as well. Could you shed some light on those?