Red orange yellow green blue green purple pink gradient brush

Quick answer：

The phrase '红橙黄绿青蓝紫粉刷渐变色' refers to a color gradient ranging from red, orange, yellow, green, blue, purple, to pink. This is often used in art, design, and painting to create a smooth transition between colors. Gradient painting involves applying multiple colors to a surface in a way that blends them seamlessly, resulting in a continuous spectrum of hues.