Calculating Gardner Color Numbers from Modern Color Software Chromaticity Values

Introduction

Although somewhat dated, Gardner color numbers are still very much a part of established analytical procedures used in the US to evaluate the color of a variety of samples. Modern color software can provide more accurate color analysis using color scales such as CIE XYZ, CIE Lab, or chromaticity. However, the Gardner scale is well-established in certain industries and still widely utilized; consequently, it is occasioned that results from a Modern Color Scale be converted to equivalent Gardner numbers.

November 5, 2015 GMT