Adjust the sliders to get the exact Pen Color you need, then use the Copy Values button to get information. 1st Mode: Slide the Red, Green, Blue variables. Simple as that. 2nd Mode: Input the Hex Value. 3rd Mode: Click anywhere. 4th Mode: Input the Color Value.
Thanks for @griffpatch for the tutorial of getting a Color Value. Caution: I might be biased. How does it work? For the first mode, the Blue Variable adds to the Color Value. The Green adds to the Color Value but multiplied by 256. The Red is the same as green but multiplied by 65536. I used the list for the Hex Value. The second mode: I used the list for the Hex Value to get the color and RGB value. The third mode: I used @griffpatch's tutorial for getting the Color Value. You probably guessed what it does. The fourth mode: Self-Explanatory. Why some of the output variables don't show? They are being used as the input variables, or just impossible.