The Modular watch face on the Apple Watch allows you to change the color of the time and the complications to one color of your choice. However, now a “Multicolor” option is available that makes the time and each complication on the watch face have a different color.
Displaying multiple colors on the Modular watch face is easy. Press the digital crown until you return to the watch face and then force touch on the watch.
The watch face gets smaller with the name of the watch face displayed at the top of the screen and a “Customize” button at the bottom. Tap “Customize”.
The first screen allows you to change the color of the time and complications. Rotate the digital crown counter-clockwise until you reach the top of the list of colors, which is the “Multicolor” option.
If you swipe left to go to the complication selection screen, you can see the different colors assigned to the different complications in each spot on the watch face, including third party complications. Press the digital crown to select the “Multicolor” option and return to the watch face selector screen.
On the watch face selection screen, either press the digital crown again or tap the watch face to exit the watch face selector and display the multicolored Modular watch face.
The time and complications on the watch face display in different colors.
Note that the colors for the time and complications are predefined. You cannot select different colors for the time and complications, at least not in this version of the watch OS.