There are two ways you can compare colors;
1. Use the "Compare Colors" option in the home screen.
Tap "Select two colors to compare" and add the colors you want to compare. You can choose colors from My Colors or Collections.
The colors are compared with a dE value, tap the dE box to view raw colour data comparison.
2. Tap the detail view of the color you want to compare and tap the "More" option.
Tap the compare icon and choose a color to compare it against.