White and Blue

So Helen and I came across a fatal error in our experiment. When we measured the spectral reflectances of all of the colors, for some reason our blue came up with the same LAB values as the color white as opposed to blue. This threw off our whole data making us think that the cameras were terrible at taking pictures of our blue sample when really someone must have measured the sample wrong in the first place. I won't mention names but I know it wasn't me for I have no clue how to work the photospectrometer...