Table 1.

General color values and their corresponding implications.

Color Values	Implications
1.6 < ΔE < 3.2	Cannot distinguish its color difference
3.2 < ΔE < 6.5	A few people can tell the difference in colors
6.5 < ΔE < 13	The color difference is very obvious
13 < ΔE < 25	Most belong to different colors
ΔE > 25	Different colors