Capturing a color

Capture a color with Coraye is very easy. But what can we do with our colors samples ? next chapters will show you very useful fonctions available in your Coraye software.

1. How to capture colors.

First, Connect your spectrophotometer, then click on Add Color icon.

A window is displayed allowing you to define the reading conditions. These parameters are dependent on the reading instrument you are going to use.

Use Reflective mode to measure on paper or material Use Emissive mode to measure a color on your screen

If your spectrophotometer needs to be calibrated, Coraye will ask you to start the calibration procedure.

During the calibration, you have to put your spectrophotometer on it calibration position. (see the pictures on the below).

When the calibration is done, you are ready to capture colors.

Successive measurements will be displayed one under the other.

At this step, you can rename colors before save them.

When you have finish reading and renaming yours colors, you can save them by clicking on Save and quit. Now yours colors are ready to use.

But what can I do after that ?

2. How display information on color

You just have to select a color in the left column then informations relative to this color will be displaying in the right column.

  1. Color preview

  2. Lab values

  3. RGB values (sRGB)

  4. Hexadecimal values (sRGB web space)

  5. Lch values

  6. XYZ values

3. How to manage yours colors

Click right on the color to Rename, Duplicate and Delete. Export option allow to save the color as a .spc file with spectral data. These .spc files are useful to share and backup yours colors samples.

4. Show colors in the Gamut Viewer

It could be useful to display color in 3D to compare them or compare with a picture or an icc profile like a media profile. Click here for more information

pageGamut Viewer

5. Add yours colors into a Color Table

You can add yours colors into a Color Table, by a simple drag & drop . Click here for more information

pageColors tables

6. Density values

To get the density values of a selected sample, go to the “Color Density” tab located at the bottom of the right column. Click here for more information


7. Show yours reflectance curves in the Spectral Viewer.

It could be useful to compare reflectance curves of your color sample with a spectral curve of a specific light to understand the metamerism effect. Click here for more information

pageSpectral viewer

8. Convert yours colors samples in CMYK or RGB with the Color Converter

This option converts your color into CMYK or RGB values depending on the ICC profile of your media. With the Delta E value, you can tell whether your color sample is reproducible or not. In this example, we have a saturated red and we want to know if our offset printer will be able to reproduce it faithfully. For this, we will drag the CMYK profile Isocoated_v2_eci.icc * into the profile area. This will convert our red to the closest CMYK values. But we can see that this color is not reproducible in this color space because the Delta E = 5 We also see in the Gamut Viewer that this color is outside the Isocoated_v2_eci.icc color space.

  • The Isocoated_v2_eci.icc profile is a standard used in Europe for processing CMYK files.

In this example, we have the same saturate Red as above. We have drag & drop the AdobeRGB 1998.icc RGB profile into the profile area. Now we are getting the most closest RGB values. Here we can see that this color is reproductible in this color space because the Delta E = 0 and we also see in the gamut viewer that this color is into the AdobeRGB 1998.icc gamut.

pageColor converter module

9. Find the closest color from a swatch book in Color Finder

You have captured a color sample and you need to know what is the closest PANTONE® value ? To know that, you just need to select your color, go to the Color Finder tab, and drag & drop a color table (ex PANTONE® C) to the Color Table area. Then you will get the closest Color of the swatch book with the Delta E value to give to you the color accuracy. This function can be also useful to do a quality control from a swatch book containing sample color to check.

pageColors tables

10. Compare two color with the Delta Finder

If you need to compare two sample colors to know the accuracy between these colors, you can use the Delta Finder function. To use it, you just need to select your first color into the left column, to go to the Delta Finder tab then drag & drop the second color to the Color area. you will get the Delta E value.

pageDelta E Finder

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