comparatively high-end color scheme

Quick answer：

A high-end color scheme typically refers to a palette of colors that are sophisticated, elegant, and often associated with luxury or high-class design. These colors can range from deep, rich tones like dark blues or deep reds, to softer, muted shades that evoke a sense of sophistication and class. High-end color schemes are often used in fashion, interior design, and other areas where a refined aesthetic is desired.