Delta E, A/B color comparison
CIE94 and CMC use the first color as the reference and are not symmetric. Screen swatches are sRGB previews, not physical color standards.
Color Converter
Print profiles use interpolated, 8-bit LittleCMS lookup tables with relative colorimetric intent. These are approximations, not an exact ICC proofing engine. All RGB values are sRGB.
XYZ and Y in Yxy use a 0–100 scale. CMY/CMYK use 0–1. Outputs use the selected output illuminant and observer. Out-of-gamut RGB previews are clipped.