I finally corrected the problem with my different-colored 42 SMD LEDs. Although they were better than the stock halogen bulbs, the color mismatch was bugging me. I ordered another set of the same 42 SMD LEDs and replaced the yellowish LED I had installed previously (passenger side) with both of the new LEDs. Neither of them matched the driver side LED I had installed previously. However, both new ones matched each other really well so I replaced both of the LEDs I had installed previously with the new ones. I may eventually purchase the Oracle SMD LED assemblies, especially when I install a backup camera. However, I'm happy with the cheap 42 SMD LEDs for now as they look way better than the stock yellowish halogens.
Stock halogens (day):
New 42 SMD LEDs (day):

Previous 42 SMD LEDs (night):

New 42 SMD LEDs (night):