Classic UI interface color scheme

Quick answer：

A classic UI interface color scheme typically includes a combination of colors that are easy on the eyes, harmonious, and suitable for the target audience. It often includes a primary color that sets the tone, a secondary color for emphasis, and an auxiliary color for contrast. Classic color schemes can vary depending on the design philosophy, but common examples include black and white, blue and white, and gray-scale color palettes. These schemes are chosen for their neutrality, readability, and universal appeal.