Colour picker problem (1.6)

[Budapestis]

Hello!
 
I've got a problem with my prestashop back office. Every colour picker (modules, order status etc..) removes the hashtag (#) before the colour codes, so I can't copy codes or pick any colours. I really don't know what is the problem.
 
Made a video of an example of the problem: http://screencast-o-matic.com/watch/coftopfn3o

 

Anyone has any idea? :/

 

Thanks!

 

Gergő