Several simple measures may get rid of this pink screen MacBook, such as restarting the MacBook, updating macOS and unplugging the external devices. Reset the SMC and NVRAM to get rid of the graphics and display-related issues. To find out if third-party software or drivers are responsible for the problem, you may try booting into Safe Mode. Besides that, users need to check if the current temperature of the MacBook has not gone too high to cause the issue. They also need to ensure MacBook has the latest system updates installed. When the pink display keeps on appearing, hardware issues like the GPU, logic board, or display assembly may be the reason. Usually, a professional diagnosis and repair is the only way to get a permanent solution in such cases.