1.Bring the samples home
Tape a paint chip or a tile to the real wall and look at it morning, noon and evening before you decide.
2.Watch for glare
Glossy tile and polished stone can throw strong reflections in a room with big windows. A honed or matte finish is often easier to live with.
3.Warm and cool tones
Warm sand tones feel calm in bright light. Cool tones can look harsh in full sun unless they are softened with texture.
Planning a project like this?
