Raj Blend 900 x 600mm single size paving slabs. Part of the character of sandstone paving is that no two stones are coloured the same, however, when combined they create a rich tapestry of colour to make a beautiful overall hue. Seasonal changes can often bring a differing perspective to the reflected colours of the stone. In strong summer sunlight a sandstone patio will appear to have less colour variation, whilst after rain the colours will be of a deep patina.