Compare colour samples in the intended finish and different daylight conditions before choosing. Use an appropriate sample method for the façade rather than relying only on a small indoor colour card. Colour appearance changes with lighting, surrounding colours, area, texture and gloss. Compare a representative sample in its intended setting; there is no fixed number of shades by which every colour changes.
Follow a daylight comparison: compare samples in several daylight conditions, including sun and shade where relevant. This is a practical comparison method, not a guarantee that a colour will appear identical at every time of day.







