I found some handy RGB values of various lights, as seen on Redit.
Candle: 255, 147, 41
40W Tungsten: 255, 197, 143
100W Tungsten: 255, 214, 170
Halogen: 255, 241, 224
Carbon Arc: 255, 250, 244
High Noon Sun: 255, 255, 251
Direct Sunlight: 255, 255, 255
Overcast Sky: 201, 226, 255
Clear Blue Sky: 64, 156, 255
Warm Fluorescent: 255, 244, 229
Standard Fluorescent: 244, 255, 250
Cool White Fluorescent: 212, 235, 255
Full Spectrum Fluorescent: 255, 244, 242
Grow Light Fluorescent: 255, 239, 247
Black Light Fluorescent: 167, 0, 255
Mercury Vapor: 216, 247, 255
Sodium Vapor: 255, 209, 178
Metal Halide: 242, 252, 255
High Pressure Sodium: 255, 183, 76