Colour 0.3.15 is available!
Besides the various fixes, the highlights of that release are:
Support for Academy Spectral Similarity Index (SSI)
Spectral distributions for the CIE LED Illuminants LED-B1, LED-B2, LED-B3, LED-B4 LED-B5, LED-BH1, LED-RGB1, LED-V1, LED-V2.
Spectral distributions for the CIE Indoor Illuminants ID65 and ID50.
Head to the releases page for complete details.