L* | Represents a standard or sample’s position on the lightness axis in either CIELAB or CIELCH color space. |
a* | Represents a standard or sample’s position on the green/red axis in CIELAB color space, green being in the negative direction and red being in the positive direction. |
b* | Represents a standard or sample’s position on the blue/yellow axis in CIELAB color space, blue being in the negative direction and yellow being in the positive direction. |
C* | Represents a standard or sample’s chroma value in CIELCH color space. |
H* | Represents a standard or sample’s hue value in CIELCH color space. |