Not all colours go together well, especially on a phone or computer screen. For example, red text on a green background is hard to decipher:
whereas the same text on a white background is much clearer:
AT Gojira Web Design we take care to ensure that your site’s colours are a good fit with each other. There are many tools available to help with this, for example a colour scheme generator like the one in the picture, and colours are often changed around until we are happy with the look. We also sometimes take colours from your existing signs/logos etc. in order to give your site a look of its own rather than from a template.