I haven't seen this problem when exporting an SVG from AI to Moho and rendering. After seeing your image above, I ran a similar test to see if I got the same result, but my test turned out okay.
Here's what I did.
1. I created a color swatch in Adobe Illustrator using the color #CC7029.
2. Saved an SVG from AI for Moho.
3. Imported the SVG from Moho. Sampled the color and it was #CC7029.
4. Rendered the swatch to PNG using Moho Exporter. Sampled the color and it was still #CC7029.
Curiously, when I sampled the color from Illustrator's display, I got #CD712A, not #CC7029. Visually, it's close but it appears Illustrator doesn't
display the exact color in its viewport. Technically, the
applied color in Illustrator #CC7029 is correct; AI just
displays it incorrectly as #CD712A.
Anyway, I have a couple of guesses for what's going on with your system...
1. You're using Illustrator set to display with the CMYK display profile or something like that. You should be using the RGB profile for web stuff.
...or...
2. You're exporting the SVG with settings Moho doesn't like. I found that Moho likes SVGs saved with
Save As...SVG rather than
Export SVG. For some reason, Illustrator handles the SVG data differently between these two commands, and the result is more accurate with Save As...SVG and unpredictable with Export SVG.
Hope this helps.