Article 2
1. The reference colours for the EU trust mark for qualified trust services shall be Pantone No 654 and 116; or blue (100 % cyan + 78 % magenta + 25 % yellow + 9 % black) and yellow (19 % magenta + 95 % yellow), when a four-colour process is used; when RGB colours are used the reference colours shall be blue (43 red + 67 green + 117 blue) and yellow (243 red + 202 green + 18 blue). 2. The EU trust mark for qualified trust services may only be used in black and white, as shown in Annex II, if it is not practical to use colour. 3. If the EU trust mark for qualified trust services is used on a dark background, it may be used in negative format using the same background colour, as shown in Annexes I and II. 4. If the EU trust mark for qualified trust services is used in colour on a coloured background, that makes it difficult to see, a delimiting outer line around the EU trust mark for qualified trust services may be used to improve contrast with the background colours.