How to Find a Hex Color Code. Upload the picture to an online color chooser, like Image Color Picker, and tap the color on the screen you want to identify. Then, tap the Copy icon next to the 6-digit hex code to copy it. Alternatively, use programs like Digital Color Meter or Color Cop.

Hex color codes start with a pound sign or hashtag (#) and are followed by six letters and/or numbers. The first two letters/numbers refer to red, the next two refer to green, and the last two refer to blue. The color values are defined in values between 00 and FF (instead of from 0 to 255 in RGB).

The 3-digit hex code is a shorthand for some 6-digit hex codes. Where r, g, and b represent the red, green, and blue components with values between 0 and f. The 3-digit hex code can only be used when both the values (RR, GG, and BB) are the same for each component.

Hold a sheet of white paper next to your skin to find your complexion. Double-check your undertone color by looking at your arm next to a piece of white paper. You have a warm complexion if your skin looks yellow, green, or golden. If it looks pink, red, or blue, you have a cool complexion.