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Normal urine color varies, depending on how much water you drink. Fluids dilute the yellow pigments in urine, so the more you drink, the clearer your urine looks. When you drink less, the color becomes more concentrated. Severe dehydration can produce urine the color of amber.

mayoclinic.org

Urobilinogen is a colorless by-product of bilirubin reduction. It is formed in the intestines by bacterial action on bilirubin. Urobilinogen is converted to the yellow pigmented urobilin apparent in urine.

en.wikipedia.org

Riboflavin (vitamin B2), vitamin B12, folic acid and other B-complex vitamins contain yellow-green or yellow-orange pigments that may change urine color. This side effect is harmless and usually goes away on its own.

livestrong.com