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Secondary colour palette

The primary colour palette of Serco Grey and Serco Red are complimented by a secondary colour palette. Colours from the secondary colour palette (see below) are the only colours permitted to be used as complimentary to the Serco brand.


These additional colours can also be used in tints of 20% intervals i.e. 100%, 80%, 60%, 40% and 20%.

Colour selection guide

You can use colours from the Serco colour palette to highlight attention-worthy parts of your design, like headlines, calls to action and graphic elements.

All designs must include Serco Grey and Serco Red as the primary colour choice. However, if additional secondary colours would be beneficial follow these guidelines:

1. Choose a colour from the secondary colour palette, all colours are complimentary to the Serco Grey

2. No more than one secondary colour should be used in a given spread, the exception would be when the secondary colours are used in charts, graphs and infographics

3. If type/copy is added on top of a solid colour ensure it meets accessibility standards

Rich Red colour
Deep red colour


These addtional colours have been chosen, not only as complementary to the primary colours and to each other, but also to provide clarity in contrast when using the Serco Grey as a background colour.