This sounds like a healed scab. The color will take some time to even out, because that's the way legs heal. I think you should show tis to a doctor in person, because it's hard for me to tall you what this is without seeing it. But nothing in your description sounds particularly scary. Just leave it alone so as not to confuse the issue, and let a doctor have a look.
Best.
Dr. Rockoff
I forgot to mention that it does not feel like a bump anymore just slightly raised which I feel is the scar tissue.