Color harmony is about their arrangement in design in the most effective and attractive way for user perception. Color balance is vita, since users make their impression of a website or an application at the first glance, therefore, colors make a big difference. At the core of a good system is choice without endless options, a stable aesthetic to serve as a starting point. In most cases, a design system need not offer boundless choices. Often a great identity has one, two, or no more than a few core brand colors. Clarity enhances usability rate, supports readability and makes all the colors do their best.