I'll share here my self-made Kde Theme hoping you appreciate
The main idea is to suppress as much as possible white color and have a good contrast as explained by author of Solarized colors palette (http://ethanschoonover.com/solarized).
These are basic components:
- QtCurve Style and windows decoration: LightSolarFlat
- Colors Scheme: MySolarizedLight
- Konsole and Kwrite/Kate theme: SolarizedLight
- Icons: FaenzaFlattr-Green
- Fonts: URW Gothic
- X11Cursor: redglass

In attachment you'll find qtcurve theme and colors scheme files. Icons and fonts are available on kde-look.org

Gtk programs works pretty well: the tab's title of firefox is black instead of "white".
note: It is likely not a complete theme, but I find it quite comfortable and usable. The final result is much dependent on your monitor's gamma.