This dialog is used to select a specific color to be used as line color, fill color, text color or image color.
It defines 48 "basic colors" shown in the upper left part. Click on one of these to select that color.
You can also select a color in the color diagram in upper right part. The horizontal axis of this diagram is hue, the vertical is saturation. Colors at the top of the diagram are thus fully color saturated and colors at the bottom are gray. The horizontal slider to the right of the diagram is used to adjust the brightness. At the bottom of the slider (brightness = 0) any combination of hue and saturation become black. At the top you get bright colors.
 | This dialog employs the HSV color model (V means brightness!). It differs from the HLS color model used in many other contexts by the definition of range for brightness and the interdependency between brightness and saturation. |
You may specify HSV values explicitly by typing numbers in the fields Hue, Saturation, and Value (range 0-255).
The color may also be specified as RGB values typed into Red, Green, and Blue.
In the lower left part of the dialog there are 16 slots for "Custom Colors". When you have selected a color (which is not already a basic color) and want to have this color available later for reuse, you can on the slot in which you want to put the color and the press the buttom Add to Custom Colors.
 | If you click Add to Custom Colors before you have selected a slot the color will go into the first slot and may thus overwrite one of your previously saved custom colors. |
Unlike the colors in the color popup panels in the tool boxes the custom colors are one common pool, no matter what type of object the color is selected for.