The work area (user interface) > Settings > Color settings
  
Color settings
Color settings affect the color of 2D and 3D elements in the viewport, that are created using Modeling, 2D CoPilot, 3D CoPilot, 3D Annotation, and other commands.
To change color schemes,
1. Click File > Settings > Color. The Default Settings browser opens. You can set or change the default color schemes of elements in the following categories:
3D Objects
Modeling
3D Annotation
2D CoPilot
3D CoPilot
Viewport
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You can also change the default color of the Viewport background. See Change viewport settings.
2. Double-click an element to change the default color. The Select new color dialog box opens with the selected element and the default color.
3. Select a new color from the list.
You can also create your own color scheme.
To create a new color scheme,
1. Click File > Settings > Color. The Default Settings browser opens.
2. In the Color Schemes list, select Create New. The Create New Style dialog box opens.
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In the Color Schemes list, you can also select Creo or CoCreate for default Creo and CoCreate color schemes respectively.
3. Type a name of the color scheme in the Name box and click . The new color scheme appears in the list.