Chicago Dyes Its River Bright Green as It Opens St. Patrick's Day Celebrations ... While the river stays bright for several hours, some trace of color can remain for days. A second St. Patrick's ...

and the bright green USB port is one such example. It may easily be confused with other, similar colors. Moreover, the color of a USB port can often be misleading. So, let's move on to ...

CHICAGO — The Chicago River is once again glowing kelly green as the city opens ... While the river stays bright for several hours, some trace of color can remain for days.