#### black in color structures (24.10.01)

##### Dr. U. Kasper

I have some PLOT (not plot) structures with diﬀerent COLORs and I am unable to give one of them the color black. What are the values (or the value) for RGB, HUE or HSV? Or is there an other option for this?

##### Theodore Kolokolnikov (25.10.01)

The trick I use is the following. Suppose that ’pic’ is your plot structure, for example:

Then you can do this:

This will turn everything in your picture black.

##### Robert Israel (25.10.01)

Black isCOLOUR(RGB,0,0,0). It doesn’t have a HUE. In HSV it would be COLOUR(HSV,h,s,0) where h and s can be anything from 0 to 1.

You can get the RGB values for the named colours from the table plot/colortable. So, for example: