problème colorimetrie

I work on indd and AI in RGB

Hi @Maël34491240xjiz , InDesign documents can have a mix of RGB and CMYK color—unlike Illustrator every document has both an RGB and CMYK color profile assignment (see Edit>Assign Profiles...). In order to preview how document colors will output, you have to turn on Overprint Preview or Proof Colors. Overprint Preview uses the document’s CMYK profile assigment, Proof Colors uses the Proof Setup profile.

Your process RGB green color is out-of-gamut to most print profiles which is displayed in the Overprint Preview

The Color panel and Swatch Options dialog have out-of-gamut warnings:

Tu es certain d'avoir les mêmes réglages d'export ?  Et si le PDF du bas a les bonnes couleurs, pourquoi ne relèves-tu pas la composition quadri de ce vert et pourquoi ne l'utilises-tu pas directement dans tes fichiers Illustrator et InDesign ? Travailler en RVB, c'est bien pour les photos mais je ne vois pas l'intérêt pour des aplats.

Is the logo created natively in InDesign? If it was created in a different program such as Illustrator then make sure that Illustrator's color profile also matches. Also, if the needed end result is for print then it will be printing in CMYK. The green you are using for the logo looks like it might be out of gamut for CMYK. If this is the case then try converting it first to CMYK and try to find a CMYK equivalent that is a close as possible to the RGB color.