On the other hand, color can be also evaluated in terms of the parameters L∗, a∗ and b∗ to obtain the coordinates in the space defined by the Commission Internationale de L’Eclairage, called CIE 1976 (L∗a∗b∗) color space or simply CIELAB color space. L∗ refers to clarity, whilst a∗ and b∗ are related to red/green and blue/yellow components, respectively. The parameters L∗, a∗ and b∗ are obtained from tristimulus values XYZ, previously calculated from reflectance or absorbance spectra in the range 380 nm–780 nm according to CIE’s Technical Report on Colorimetry (CIE, 2004).