Is it possible to make work LDR as color sensor?

[KMoffett]

Hi everyone,
As it seems to me that I have to fixed the light source,LDR and color object at fixed location. Because I'm observing that distance from LDR to object hugely affected the reading value.

Yes, no matter what the light source, color, or detector is, the "inverse square law" will apply.

Ken

 

[Dick Cappels]

Just a suggestion, if you want to have an accurate idea of the color, you might want to consider a tri-color sensor from Taos semiconductor (now AMS). Their filters are accurate enough to calibrate displays used in color publishing, and the sensors themselves are inexpensive. As an example: **broken link removed**

 

[alec_t]

Unfortunately that's barred (as per post #1)