11.3.4 colorinfo

      (Tcl) This command provides access to the color definitions. For information on the color properties see the chapter on Coloring.

• colorinfo categories: returns a list of available categories  
• colorinfo category category: returns a list of names for the given category
• colorinfo num: returns the number of base solid colors (17)
• colorinfo max: returns the total number of colors available (98)  
• colorinfo colors: returns a list of the named solid colors  
• colorinfo <rgb | alpha | shininess | ambient | specular> < name | colorid >: returns the appropriate values for the given name or color id  
• colorinfo scale < method | methods | midpoint | min | max >: returns the information about the color scales

Examples:

  # find out what color corresponds to which id:
  set i 0
  foreach color [colorinfo colors] {
    puts "$i $color"
    incr i
  }


  # also get a list of RGB values
  set i 0
  foreach color [colorinfo colors] {
    lassign [colorinfo rgb $color] r g b
    puts "$i $color   \{$r $g $b\}"
    incr i
  }