The relationship is "loose"..and it seems the two aren't necessarily related to one another?
K temp (w/ fluorescent it is more correctly CCT) is a spectral summation to produce a given color temp. As such adding and subtracting various colors of the spectrum can still lead to the same SUM..
Third sort of "variable" is CCT.. which defines how close colors will match to a certain standard..
https://www.google.com/url?sa=t&rct...fDI5L3f3g&sig2=_qN8mIRCrGL19Im6ZQ6NxA&cad=rjaThe CCT rating for a lamp, luminaire, or fixture is a general indication of its color appearance (warm or cool). Light sources with a CCT rating below 3200K are usually classified as "warm", while those with a CCT rating above 4000K are usually classified as "cool" in appearance. Although CCT is a good indication of the lamp's general appearance, it does not provide information about the lamp’s spectral power distribution. For example, as shown in Figure 4, two lamps A and B can have the same CCT (6000K) but different color appearance. Lamp A appears greenish white while Lamp B appears pinkish .
what is the goal of your experiments??
Last point is spectrum is the only true "picture" of a light..
If you want to do "color" experiments I suggest using DIY LED's..