Nice look. I'd likely pick a slightly lighter grey - something 1/3rd between this grey and white, as possibly the half-way point will be too bright. If this is at all possible.
Like the muted colors. If grey color for the text is up for grabs, you could always give it a pale green color. .)
Also, not sure if this is where to report issues, but the forum is really slow and jerky when scrolling and loading.