Fix color picker not working on LibreOffice 4.4.x.x

Fire up Terminal and paste the following command,
> cd /usr/lib/libreoffice/share/config/soffice.cfg/svx/ui
> sudo nano colorwindow.ui
You now need to set the “Visible” flag of the GtkWindow to “False” instead of “True” (currently its on line 15)

Ctrl + o , press enter to save the file.
Ctrl + x to exit
Open Libreoffice and check if the color picker now works.