In nT Colorations, there are several adjustments to create and change colors of colorways. The options most options you will find in channel options.


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Coloring with Color Picker

The color picker allows you to customize channel separations using various methods. To access the color picker, double-click a channel separation to open the Channel Options window. By default, the Color tab will be selected. From here, you can choose the desired color using the color picker. Alternatively, the picker can be accessed via the channel's contextual menu or by pressing the shortcut Alt + Double-clicking the channel.


Once the Color Picker is open, you can modify the color by either moving the selection point within the color space or entering values in the supported color models: Lab, RGB, CMYK, HSB, or by reading color values from a spectrophotometer. The color picker supports 32-bit color precision and hexadecimal color codes. If the "Use only color library" option is enabled in Preferences, the color picker will automatically synchronize with the color library.


When working in RGB profiles and coloring in Lab space, you may encounter a deltaE warning, indicating a potential color mismatch. By clicking the patch below the warning, the picker will select the closest possible color.



For device ink coloration, you need to convert the coloration into the appropriate device ink profile before applying color. Once this conversion is made, a "Device" button becomes available in the Color Picker dialog. You can switch back to the standard color picker by clicking the "Picker" button.


When using device colors, you can enter ink values as percentages. If you prefer to use unit values (0-255), simply click the % symbol next to the ink value fields to toggle between percentage and unit modes.




Coloring with HSL, Brightness/Contrast, Color balance, Selective color

The tools are accessible from the tab 'Color' next to the color preview.


With the tools, you can change the hue, saturation, and lightness of the color. These changes can be applied to all channels simultaneously. 


Pressing '+' under the colorations list, or right-clicking on any coloration, with 'Hue...' you can open the HSL sliders.


 

Adjustments with Curve

With curves, it is possible to modify the shadows, highlights, and mid-tones of the color. The 'Curves' can be opened from the 'Channel options' window with the tab above the color preview. The curve can be adjusted, saved as .csv in the dialog, and loaded from the curve file (.acv). The remove the curve, you can reset and no curve is applied. These changes can be applied to all channels simultaneously. The color change is applied automatically and the new % of curve input/output is shown in the channel dialog.


 

Coloring with Color Selector

The color selector is located below the coloration list. Clicking on the pixel color in the main preview will show you the color's values. You can select values between Native, Grayscale, RGB, CMYK, HSL, HSB, Lab, and XYZ when right-clicking on values. 


To color the color channel, Drag&drop the color from the selector into the channel.

 

If you work with device ink colorations, drag the color from the color channel inside and drop it in the color selector to view the device ink color values.



Coloring with Color Library

Coloring with color libraries can be done in different ways.

  • Shortcuts: Select the color channel and then select the color from the library and press Alt + Intro to assign the color
  • Drag&drop: Select the color in the color library and drag it on the color of the separation. If you have a library with color gradients, the most intense color will be applied. If you want to apply a lighter tone, select it while pressing the Alt key.
  • Synchronize: With the selected library you can synchronize colors to the selected colorway.


Related articles:

Colorway Options

Colorway's channel options 

How to measure colors with a spectrophotometer

Synchronize colors from library to colorway