Semi-transparent colors should not return a name.
Semi-transparent colors should not return a name.

pandabamboo90/TinyColor,dabassett/TinyColor,pandabamboo90/TinyColor,mwcz/TinyColor,GerHobbelt/TinyColor,bgrins/TinyColor,dabassett/TinyColor,mwcz/TinyColor,weepy/TinyColor,vxvinh1511/TinyColor,weepy/TinyColor,vxvinh1511/TinyColor,bgrins/TinyColor,GerHobbelt/TinyColor