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UK Civil Aviation Regulations

These are published by the CAA on our UK Regulations pages. EU Regulations and EASA Access Guides published by EASA no longer apply in the UK. Our website and publications are being reviewed to update all references. Any references to EU law and EASA Access guides should be disregarded and where applicable the equivalent UK versions referred to instead.

Primary colours


  • The base colour for CAA web applications is #0c1975. It's used for clickable elements such as links and buttons, as well as the header block.
  • #008094c is for signifying focus and should only be used for this purpose.
  • Error states and alert messages should always use #bd0045. Examples include the alert banner, inline input field errors and the global error messaging.
  • Use #00693e to confirm the completion of a process, for example the successful submission of a form.
Colour Hex Code Less Variable
Midnight blue #0c1975 @colour-brand-primary
Eastern blue #008094c @colour-eastern-blue
Dartmouth green #00693e @colour-dartmouth-green
Cardinal #bd0045 @colour-caa-red

Secondary colours


Colour Hex Code Less Variable
Gray80 #ccc @colour-grey
Gray97 #f7f7f7 @colour-grey-lightest
Whisper grey #e9e9e9 @colour-grey-light
Gull grey #a1abb2 @colour-grey-middle
Charcoal #444 @colour-grey-dark
Gray20 #333 @colour-grey-darkest