Bluish tinge -- fluorescent lighting                                                Color balance adjusted

Info from ZDNet's Guide to Digital Photography

Common Lighting Situations

Lighting Color temperature

Candlelight

1500 K

Incandescent light bulb

2680 K

Sunrise/sunset

3200 K

Tungsten/halogen

3500 K

Typical flash

5500 K

Bright sunshine

6000 K

Office fluorescent

6000-7000 K

Overcast daylight

9000 K

Color temperatures for some lighting situations