Tone is Subtle

Using colour tones can be effective in subtle way. A lot of interesting things happen with the eye when we look at tonal colour shifts and you can achieve good results with this simple technique. Play around with colour tones and see what you can do.

Contrast

Contrast can be an affective design tool. It can create a lot of interest in your designs and also add dramatic effects. In this example their are two types of contrast: shape and texture.