Picking perfect icons for a website offers more contexts to the content than the copy, color palette or graphics. Using icons means you can be sure about the religion, target audience, history, and thus avoid any sort of misunderstandings and misconceptions. Thinking about the values and the brand reveals the fact that hand-drawn icons are not used for a website meant for banks.
Initiate with primary colors as website design to dominate the website. However, remember that dominant colors must not include over three shades. In case there is a need for secondary or tertiary colors to bring out your user interface, you must define them.