User is unable to select sky blue color while creating role.

Steps to reproduce-

1. Open the Link "https://app.weekplan.net/ "
2. Fill Login Details like Email Id and Password and click on Login.
3. Go to planner.
4. Add a role.
5. Select sky blue color.
6. Check whether user is unable to select sky blue color while creating role

Expected Result - User should able to select sky blue color while creating role.

Actual result - User is unable to select sky blue color while creating role

OS and Browser version - windows 7 and (Mozilla Firefox 44.0.2)

Test Data : http://prntscr.com/adwaxm