White would be best for the house. However the red paint on the gate does not look good so go for a fullywhite one

light orange might be suffice

Hello Nihal. your building has an old house charm. I feel that you want something unquie. Below is one image showing ornamentation of the building colured in bright vibrant colours with a neutral beige base colour. Your building has less ornamental features as compared to the suggested picture which is good. You can tastefully select a couple of bright colours for painting the ornamentation on your building to give a fresh unique look.