When it comes to colours you want to pick a colour scheme that is appropriate to your industry and has the right tone. There are always exceptions but generally, brighter colours are friendly, associated with the youth and fun. Darker, less saturated colours are more sophisticated, higher end, and luxury.
Adobe has a website dedicated to colour, here you can explore a vast combination of colour professionally curated to represent you brand. In the search bar enter a word to represent your industry, for example 'Health' the Adobe colour will display all of the colour swatches that have been tagged with health.