Select from the list the type of input data you will insert.
Some color spaces (XYZ, CIE-L*ab for example) require to additionally select the proper illuminant (light condition) and observer (viewing angle). In case of RGB or CMYK data the default illuminant and observer (D65/2°) are automatically set.
Insert your color data in the entry fields. Previously entered data will be inserted by default making easy to transfer the same data across the different tools of the site.
As an alternative to manually entering the color data, it is possible to pick a color previously saved.
The button is available immediately below to clean all the entry fields and start a new insertion.
Press the button to generate the desired complements.
The tool automatically checks for data consistency. In case an entered value is not compatible with the select color space an error will be displayed and the associated entry filed will be flagged with a red icon ().
As a result a large color swatch with the original color as background and containing the calculated complements, will be displayed. The original color and all complementary color swatches will be clearly identified by the corresponding sRGB values.
Clicking on any of the color swatches will open the "options" dialog, where additional choices are available for the selected color:
