Do you need a binding colour sample for quality control and colour matching of RAL EFFECT colours? RAL EFFECT E1 Colour primary standard cards provide binding colour samples for the 70 metallic colours and 420 complementary solid colours in the RAL EFFECT collection. Practically sized in A6 format, RAL E1 Colour primary standard cards feature a semi-matt finish for the solid colours and a high gloss finish for the metallic colours.