The colours are always dependent on lighting. Be it natural light pouring in through windows or artificial lighting, colours will look different under different lighting. So always consider what colours will look like under different lighting before fixing on an option. Another painting tips to be kept in mind is the number of coats of a colour. With varying number of coats, the intensity of the colour will also vary. So be sure about the intensity you desire. Consult the paint’s manufacturer just to be sure.
If you are combining two colours, that is, painting a wall in two or more colours, then be sure you know the exact combination you want. You can use just pastels for a more refined more subtle look. If you are going for colour block, be extra careful with the colours you use. This will make quite a statement. But this will also create a chaotic look if not done properly.