IMOS - Setting ribbon color
To set the color in the ribbon you will need to set the flag CFGLibCrMasthead
In the value box, you will be able to set the 3 HEX colours separated by a comma (e.g. #469130,#469130,#469130). For having a gradient in the ribbon you will need to select different color codes. In the below link you will be able to find the color Hex code.