Lightmapped colors look weird

I've got a scene where a room is lit by dark, blue-ish light, with some small areas accented by tungsten lamps giving off a warm, orange light. When I lightmap the scene, the tungsten light looks fine wherever it hits a warm color (like wood surfaces), or a neutral color (like the off-white ceiling). But wherever the warm light hits the pale blue walls, it makes a weird blue-greenish color. This seems like it might be more of a DX9 blending mode issue rather than a Unity-specific thing, because it happens in both Max (viewed using a DX shader) and Unity. It looks fine in a Max software render.

Has anyone ever run into this problem?

 

Done!

 

watch this strange behaviour of unityEditor colors are messing up but i fixed it