The colours you choose for your mosaic tiling will ultimately depend on the effect you are looking to create. You might be looking to add to an existing colour theme, or you might be looking to create a multi-coloured pattern.
Blues and greens, and shades in between like yellow/blue, pale purple and turquoise all make us feel calm and relaxed. Because they recede into the background, they are perfect for creating a sense of depth.
Pale pastel colours create a feeling of liquidity and rest. These colours are almost clear or transparent.
Dark colourS like black or brown make things appear smaller and more serious. They are often used to draw attention and create emphasis.
Pale colours, including light blue, pink and purple are seen as romantic, calm and gentle.
Bright colours such as orange, red and bright yellow are cheerful and draw the eye and add a sense of fun to a garden.