Chimera Commands Index

( colordef | colourdef ) color_name  red green blue [ alpha ]

( colordef | colourdef ) color_name  existing_color_name

( colordef | colourdef ) existing_text_color_name

( colordef | colourdef ) list

Example Color Definitions
color name red green blue
red 1.0 0.0 0.0
green 0.0 1.0 0.0
blue 0.0 0.0 1.0
cyan 0.0 1.0 1.0
magenta 1.0 0.0 1.0
yellow 1.0 1.0 0.0
white 1.0 1.0 1.0
black 0.0 0.0 0.0

Colordef can be used to define a new color or to change the definition of an existing color. See also: color, ribinsidecolor, modelcolor, scolor, transparency, background, the Color Editor, coloring

The color_name can be:

The red, green, blue, and alpha arguments must be floating point numbers between zero and one, inclusive. The alpha value denotes opacity (1 – transparency), where 0.0 means completely transparent and 1.0 means completely opaque (default).

The existing_color_name can be any color name that specifies a single color. The name colorpanel, fromeditor, or editor can be used to save the current Color Editor color to a name before further changes are made.


colordef lilac 0.5 0.5 1.0
colordef transparent_red 1 0 0 .4
colordef same_transparent_red 1,0,0,.4
colordef puce #551129
colordef raisin puce
colordef myblue colorpanel
colordef C green
If only an existing_text_color_name is supplied (any of the 169 built-in color names or a name defined previously with colordef), the color's red, green, blue, and alpha component values will be reported in the status line and Reply Log.

The list keyword indicates listing all of the user-defined color names in the Reply Log.

A convenient way to define colors automatically is to place colordef commands in a startup command file (see the Command Line preferences). Color definitions are also saved in sessions.