You can easily refer to precise values of the colors you pick with RGB/HSB sliders in MagicPicker color wheel panel. Click small triangles to display the smart rulers with numbers. Hide/show them individually. The rulers display more information as you resize the panel! #PS and #AI compatible.
MagicPicker color wheel panel – supports Photoshop CC, CS6, CS5, CS4, CS3 and Illustrator CC, CS6, CS5, CS4, CS3