Is there direct co-relation between CIE 76 and ANLAB 40 and ANLAB 50 color spaces?
The CIELAB equations can be thought of as an evolution from the ANLAB color space. However, there isn’t a direct mapping between them. One could always invert one space back into XYZ tristimulus values and then compute the other and it might be possible to derive a set of equations for that whole process if that is really necessary.