The things you need to remember when putting colors to your website are simple: it must compliment, it must have a good contrast, and a bit of animation.
What is difficult is implying the message before the color you have chosen.
Color is the umbrella term for manipulating hues to render variations. So it might not be appropriate if we say “colour Red” because Red, Orange, Yellow, Blue, Green, and Purple among others are technically termed as Hues, the degree of color which it can be categorize as to a specific color set. On the other hand, color purity is called Chroma.