Picture color ratio 631

Quick answer：

The term 'picture color ratio 631' typically refers to a specific color composition or palette in a visual image, with '631' possibly representing a color code or ratio. In the field of graphic design and photography, color ratios can be used to describe the balance and harmony of colors within an image, often important for conveying mood and aesthetic appeal. The number '631' could be a placeholder for a specific color formula, but without additional context, its exact meaning is unclear.