well, you really cant tell from the color, but usually , from experience in my urology office, the urine is a dark yellow. the only true way to check is getting a urinalysis test strip, or dip stick!
How can proteins be detected in urine
If sodium hydroxide solution and copper tetraoxosulphate were added to urine, a color change might occur. This reaction produces a blue color due to the formation of a complex between copper ions and proteins in urine. This test can be used to detect the presence of proteins in the urine.
Anything other then urine.
urine
What color is your urine use crack
By testing urine samples for glucose, proteins and others
purple for longer peptides (larger proteins) and pink for shorter ones
proteins
This means that you are either not drinking enough water to excrete out acetone or there is too much of ammonia in your urine. you might also find urine more greenish in color. also try to avoid onions, too much proteins and artificial sweeteners
dark urine
This test is never used for detection of tyrosine in urine, because urine contain chloride that chloride ions interfere with this test by combining with mercury chloride (HgCl2)
Does computed tomography Dye change the color of urine when excreted