You will want to see it printed
My tips for color tweaking: first number is red, 2nd is green, 3rd is blue. They are in scale of 0 to 255 (or 00 to FF in the hex scale). Bigger number is brighter.
255 255 255 is white
0 0 0 is black
255 0 0 is fully saturated red
0 255 0 is fully saturated green
0 0 255 is fully saturated blue.
For your chip, if 160 160 160 is too light but the color looks good, just reduce them but keep it even (closer to black). 140 140 140. If you need to add a touch of blue, something like 140 140 150 If it needs to be yellower, 150 150 140. Play with the colors on google (just google “rgb 150 150 150) but you really need to print to compare to the chip.