Clinical urinalysis Color. The normal color is straw-yellow. Brown, hazel color hints at liver disease and excess of bile pigments (bilirubin) in the urine, brown - at inflammation of the bladder (cystitis), especially if there is pain when urinating, and there is little urine in the analysis. Red indicates blood in the urine. From what? There are several reasons, from a pebble in the pelvis, which damaged the mucosa, to the decay of a tumor.