If you can't see the number 45 in the first image you probably do have red/green colorblindness. But you can still see the other color dimension (blue/yellow) just fine - so most likely you are seeing some but not all of the colors in the second image.

The first is an actual test meaning it's meant for someone who is colorblind to fail. The second is an example that some of those that failed the test, would have problems seeing.