How to modify colormap without using caxis()?

I'm trying to get the colormap in the below figure to even out so 60-100 aren't all the same colour. I've attempted to modify the colormap using both caxis([0 100]) and the colormap editor but have been unsuccessful. Can anyone give any advice please?

Thanks

[Rik]

Try to make a MWE so we can run your code without any other dependencies and can reproduce your issue. It is easier to modify almost working code than writing code from scratch.

[Luna]

@Rik , that link does not exist.

What kind of modification do you want to do on your colormap?

[Rik]

@Luna, thanks for noticing. I've edited it, so now it should be pointing to the appropriate Wikipedia article.