#10xx / x000
#24xx / xx00
#5xxxxx0
My monitor’s viewing angle makes them hard to see at certain angles/positions on the screen.
Not an issue with brightness/gamma/contrast
Don’t you mean TextStroke? Yeah, that would be neat.
I had this same issue when buying that hat. 
To see the serial number, I opened up Inspect Element and found the HTML code to display it.
Here’s an example of a better color to use:
