white background with gold characters, blue background with white characters.

1. White background with gold characters: White background with gold characters is a common background color collocation of advertising signs in light boxes, which is not only beautiful and elegant, but also has high color rendering.

2. Blue background with white characters: Blue background with white characters is a common background color collocation of signboards in fast food restaurants, which can make the whole advertising signboard look more refreshing and concise.