Depends on what you wish to project and the clientele you are looking for. If you want to project a conservative but confident persona then blues, and similarly if you wish such a clientele.
If you wish younger and more energetic clientele then shades of red, with yellows. Warmth and vibrancy. You will project that image. Health products require subdued blues, greens and yellows for example, never red.
Be careful with greens, as some people dislike the colour.
There is no generic guidelines when it comes to the question you posed.
Backbone of all your deals should be you value proposition - what is that novelty [in form of value] that you bring to the market. In line with this one, you must align your overall appearance and communication.
Next step is to clearly identify your buying persona. This should be as detailed as it is possible in this given moment. Based on this you learn how your target niche behaviors online [where does it hang out, what does it read/do etc]. Therefore, you adjust your content accordingly. You market to them on places they really visit online etc. Sound way to simpler then it really is.
So, in order us to back you up with some more specific advice you would have provide us with some more detailed info on your target market, value proposition etc.
The site has to be user-friendly! Keep fonts simple and images elaborate with explicit information related to construction. The choice of colour must resonate with the activity carried out by the company. However, the sereneness of blue cannot be underestimated. Best regards
Dear Dr K N Sheth , you have raized an interesting issue.
Dear Dr. KN Sheth, as the main goal of your website content is getting your message across effectively and enticing your reader to take action, while being concise. Remember, you only have a few seconds to capture someone’s attention and sell your idea…no matter how many rules and formulas you follow.
Please see the 5 Best Practices for Your Website Content Strategy
Keep it Simple
Keep it Credible
Be helpful and relevant. The key to successful website copy is relevant content.
Keep it Connected with Outbound Links
Incorporate headlines. Readers like to scan information on website pages.
Keep it Engaging
Use bullet points. Case in point. Whenever possible, bullet out ideas and tips so readers can absorb information quickly.
Keep it Scannable
Add calls-to-action. The goal of most website content is to get people to take action.