Colorblindness-friendly colors called green, blue, yellow, and red

1. What colors are color blind friendly?
2. Is yellow and green color blind friendly?
3. Is blue and green color blind friendly?

What colors are color blind friendly?

The first rule of making a palette for colorblind – avoid combining red and green. So if you're aiming to create a color blind-friendly palette try to use only two basic hues: blue and red (orange and yellow will also fit). The other colors should be made out of these two hues.

Is yellow and green color blind friendly?

Colorblindness-friendly colors called "green", "blue", "yellow", and "red"

Is blue and green color blind friendly?

Avoid the following color combinations, which are especially hard on color blind people: Green & Red; Green & Brown; Blue & Purple; Green & Blue; Light Green & Yellow; Blue & Grey; Green & Grey; Green & Black.