Thanks for looking out for us colorblind people. But, funnily enough, there is no "blue green colorblind", and to this person with red-green colorblindness, the colors in the charts are incredibly easy to distinguish. Much easier that the typical colors chosen.

There is such a thing as blue-green colour blindness, though it's a little more unusual (I as understand it). My father is one of those lucky people. His father was completely colour blind.

My father can see the two colours just fine, but if they're adjacent to each other and about the same kind of tone, they start to blur into grey.

One particular example I remember growing up. He hated the board game "Game of Life" because there's all these greens (ground) and blues (rivers, lakes, ocean etc) right next to each other all over the board. It was not a pleasant experience to be looking at it.

https://www.color-blindness.com/2007/05/18/mixing-up-blue-an... (read the part titled "Mixing up blue and green") seems to say that people with color-blindness in general may have a harder time with blues and greens. This further supports my experience given that I'm not color blind and have trouble sometimes with these colors. Green and Blue are just really similar perceptively.

All this said, you may be correct that there's no such thing as blue-green color-blind, and maybe that's not the best word to describe what I'm trying to say.

I am not colourblind. I did find those colours difficult to distinguish next to one another.

Sometimes it's the display device, and even the angle viewing it on that device.

Those colors appear quite distinct on my monitor. Others sometimes don't