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UK – EU Transition, and UK Civil Aviation Regulations

To access current UK civil aviation regulations, including AMC and GM, CAA regulatory documents, please use this link to UK Regulation. Please note, if you use information and guidance under the Headings below, the references to EU regulations or EU websites in our guidance will not be an accurate information or description of your obligations under UK law. These pages are undergoing reviews and updates.

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

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