How Color Converter is working

When you have measured a color with Spot Reader, may be do you need to convert you color into RGB, CMYK or Lab. Color finder do that and also display the Delta E values after the conversion to tell if the color is reproductible.

1 ) How to use Color Finder to convert a color with an ICC profile 

Click on the second pictogram « Color » into the upper bar on the left

Then select the spot color to convert. (I select files to load into Coraye.

For example, I’m selecting two icc profile (AdobeRGB1998 and Isocoated_v2) and two .spc files (2 previously measured Pantone color with Spot Reader)).

Scroll down the « Color converter menu » on the lower right bar, then drag & drop the icc profile to the profile location into the Color converter menu.

Select le rendering intent and the Delta E formula


Your color is automaticaly converting into CMYK or RGB, depending on it color space.

You get also Lab value after the convertion , and the delta E between the original Lab value and the Lab value after conversion, that will say if the color is reproductible or not into the color space used to convert the color.

In my example, I measured a PANTONE Cool Grey 10 C and I converted it with a CMYK profile (ISOcoated_v2_eci.icc) to know if this Pantone is reproductible into the CMYK space . In our case we can convert it into CMYK without color difference, because the delta E is close zéro.

Same example but with an RGB profile, The result will be into RGB.

An other example: you can use a paper simulation profile to do the conversion, and if the Delta E is close 0, that’s means your color is reproductible on the printer with this paper. So, if your Delta E is more than 2, that’s means your color can not be reproduce with accuracy.