"Light Blue on Black", otherwise known as a black and WHITE display!
I too noted the blue tint, and on some devices, it was a green tint, but not actually grey as intended.
Reading this brought a flash of memories related to older television and computer monitor displays. The amazing details our young minds latch on to make this hobby of retro computing so darn fun!
Bonus for what appear to be great people more than not.
My first real monitor was during the 386 era and I was able to break the 640x400 ceiling for the first time!
Yeah, interlaced 1024x768 baby!