Aside from using color and emotions to your advantage, you also need to understand that the importance of contrast cannot be overstated. Text especially should be easily readable, distinct, and clear. Don’t overthink things – when it comes to SEO and overall web development, content is king. The color on your website should not distract your viewers from the page’s actual content, but rather the color should act as a nice compliment.
The first step in creating a business is figuring out whether or not your target market is actually willing to pay for your product. Needless to say, it’s important to know your target audience. The same goes for website design – you need to know who (in general) will be frequenting your website so that you can use the right colors to target them accordingly.
You should think about demographics, and which feelings you want to convey.