Use only a single color of blue. Black, white and gray can be considered as colors with extreme saturation and lightness, so when we talk about color matching, we won't mention black, white and gray separately. )

Because there is only one color, the picture looks clean and pure. Light blue with warm white gives a fresh and gentle feeling, and the combination of cold white and cold blue tones will bring a completely clean and light feeling. Blue and white color matching can be flexible,

Hewlett-Packard Development Company (L.P.) is a global information technology company focusing on printers, digital images, software, computers and information services. Hewlett-Packard (HP) is one of the largest information technology (IT) companies in the world, founded in 1939 and headquartered in Palo Alto, California, USA. HP has three business groups: Information Products Group, Printing and Imaging Systems Group and Enterprise Computing and Professional Services Group.