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Report Abuse. The colors on the urine testing strip indicate the different concentrations of sugar in the urine. for example, the dark brown shade indicates highest concentration(++++),whereas light blue indicates nil sugar in the urine.There are other shades inbetween indicating 1/2,1,1 1/2 percent sugar.eport Abuse. The colors on the urine testing strip indicate the different concentrations of sugar in the urine. for example, the dark brown shade indicates highest concentration(++++),whereas light blue indicates nil sugar in the urine.There are other shades inbetween indicating 1/2,1,1 1/2 percent sugar.
If your urine is any color other than yellowish-orange, yellow or clear-you could have a serious medical condition. Very dark orange, reddish or brown urine, for instance, likely has blood in it and could be a sign of infection. There are some prescription drugs, however, that can change the color of your urine simply by passing through your system. Red urine can result, for instance, by taking drugs such as deferoxamine, which is used to treat iron poisoning or phenazopyridine, which is prescribed to treat urinary tract infection pain. Here are some other potential urine colors and some of the drugs that can cause them: