white, blue, black gradient color

Quick answer：

A gradient color refers to a gradual transition between two or more colors. In the context of 'white, blue, black gradient color,' it implies a smooth transition from white to blue and then to black. This type of gradient is often used in design and art to create a sense of depth or to transition between different elements. In digital media, such as computer graphics or web design, gradient colors can be manipulated to achieve various visual effects.