JPG previews are in the wrong colour

[Annice Yeo]

When uploading JPGs that have been exported from CMYK PDFs, the colours appear super green when looking at the preview of the JPG on trello. 

[Arkadiusz Wroblewski]

Hello and welcome to Community @Annice Yeo 

This green tint is almost certainly a color space mismatch. Trello previews are built strictly for the web, not print proofing, so they often struggle to interpret CMYK profiles properly.

Download the attached file directly from Trello. If the downloaded file looks correct on your machine but green on the board, Trello’s thumbnail generator is simply choking on the CMYK profile. The quick fix is to re-export the image from your design software specifically as an RGB/sRGB JPG or PNG before uploading.

For a seamless workflow, keep your print-ready CMYK PDF attached for production, but use a web-optimized sRGB image for the actual card cover.

Best,

Arkadiusz🤠☀️