First, do not use a solid color
In general, do UI design, poster design, if not special needs, it is best not to use a solid color, black and white, pure red (#FF0000) Such a color, one is because the contrast between pure black and pure white so that people feel very uncomfortable, the second is the nature of almost nothing looks pure black and pure white objects, Does not conform to people's life experience.
Second, the image of color and spatial sense of "1" color image, is the existence of contrast. Rather than a single one. For example, the same color, in the white background, appears bright. It looks dim against the backdrop of black.
"2" color sense of space.
Show three-dimensional three-dimensional sense, need to composition skills, bright color has a sense of progress, dim color has a sense of retreat. Three, the color and shape shape: square More can show red stable, festive feeling. The circle is best used in blue, so that it can give people a vast and broad feeling. Triangle with yellow, triangle of sharp sense and yellow harsh sense can match up with each other. Web Designer Complete Brochure/Black cube https://www.patternfly.org/styles/color-palette/
Color application in Web design