Is the dE calculation for the color lookup based on CIEL*a*b* or CMC?

Is the dE calculation for the color lookup based on CIELab* or CMC?

Article Number: 661
Created On: 2017-03-28 3:07 PM
Author: Datacolor [tpine@datacolor.com]

URL : http://knowledgebase.datacolor.com/question.php?ID=661

CIEL*a*b* D65/10