Choosing complementary color combinations is an art form, so it is worth paying attention to certain rules when choosing ratios. Of the most used, the 60-30-10 rule is a favorite.
Simply put, the 60-30-10 rule is an interior design technique for getting color schemes to balance perfectly.
60 represents 60% and is the main color you are using in the room, and is usually seen on the largest space: the walls. This shade will anchor the room and be the backdrop for your 30 color, which you should use half as much as the 60 hue. This is likely to be seen on accent chairs, curtains, or even an accent wall. The 10 is your accent color, which will be represented in about 10% of your furnishings, perhaps showcased on cushions, decorative objects, lamps, or artwork.