The ideal colour choice for your windows and doors depends on many different factors – here are five things to consider:

Building style – modern or traditional?
What colours are used nearby?
Do you want a granite finish or RAL colour?
What colour is most practical for your project?
Do you want different colours inside and out?

RAL paints use an industrial colour matching system developed in Germany in the 1920s and which is now globally recognised. The RAL Classic scale comprises 210 four digit colour codes which ensure precision when choosing a specific shade. Rationel windows and doors can be specified in any RAL Classic colour, and for both timber and aluminium frame elements. A wide range of RAL Classic colours are available as standard – non-standard colours may be subject to additional costs and lead times.

White is always a popular colour for window frames, especially on older or more traditional buildings. For more contemporary builds, darker shades are often preferred, including black or anthracite grey. A further 182 Classic RAL colours are available to choose from.
RAL colours are available in matt and gloss finish on the aluminium (gloss 30 and gloss 77), and a matt finish on the timber (gloss 20)

The colours on this website are for guidance only, so check your colour choice on a swatch before making a final decision. Please contact us for samples.

If you opt for Rationel alu-clad frames then you can specify different colours inside and out at no extra cost*. We usually recommend white for internal frames as it reflects light and is easy to combine with most interior colour schemes – and it’s often the best choice for smaller windows. Darker colours can look very stylish, and create an elegant frame for the window, but can also restrict interior design options.

*if choosing from our standard colour range.