There are a few ways to find hex color in Illustrator. The easiest way is to use the Colors palette. To find the hex color for a particular color, select it and then click on the eyedropper tool. The eyedropper tool will give you a list of colors that are in the range of #FFFFFF to #FFFFFF. To find the hex color for a specific hue, select it and then click on the Hue & Saturation palette. The Hue & Saturation palette will give you a list of colors that are in the range of 0% to 100%.