With creatinine and S/G checks becoming lab SOP in recent years, sample color became the least aspect in determining an overly-diluted sample. Even samples with a nice yellow color to them can still be ruled "too-dilute" due to low S/G and creatinine levels.

Therefore, when utilizing dilution techniques, it is now more important to make sure the creatinine and S/G are within satisfactory ranges - more important than "coloring" of the urine.