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DESCRIPTIONcolor attributes control the color of lines, filled areas, and text.
HOW TO SPECIFY A COLORColors may be specified by pre-defined name, by RGB specification, by gray level specification, or HSB specification (PostScript only). Hatch patterns may also be used as colors, for rectangular areas such as bars. In addition, when rendering in PNG, GIF, or EPS, the special color transparent may be used to create images with transparent background (transparent is the default for EPS).EXAMPLEAlmost all of the examples in the gallery use colors; one is bars3PRE-DEFINED COLOR NAMEA number of named colors have been defined. These include:
predefined equivalent
color name R G B values
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white 1 1 1
black 0 0 0
red 1 0 0
magenta 1 .3 .5
tan1 .9 .83 .79
tan2 .7 .6 .6
coral 1 .6 .6
claret .7 .3 .3
pink 1.0 .8 .8
orange 1 .62 .14
redorange 1 .5 0
lightorange 1 .80 .60 ;
yellow 1 1 0
yellow2 .92 .92 0
dullyellow 1 .9 .6
yelloworange 1 .85 0
brightgreen 0 1 0
green 0 .7 0
teal .0 0.5 .2
drabgreen .6 .8 .6
kelleygreen .3 .6 .3
yellowgreen .6 .9 .6
limegreen .8 1 .7
brightblue 0 0 1
blue 0 .4 .8
powderblue .7 .7 1
skyblue .7 .8 1
cobaltblue .6 .6 1
darkblue 0 0 .60
oceanblue 0 .5 .8
purple .47 0 .47
lightpurple .67 .3 .67
lavender .8 .7 .8
Example: color: blue RGB SPECIFICATIONIf none of the pre-named colors suit, a custom RGB specification in the form of rgb(R,G,B) may be used. R, G, B are values from 0.0 to 1.0 (1.0 is brightest) specify the red, green and blue components. No embedded spaces are allowed. The values may be separated by a comma (as above), or by color (:), dash (-), or pipe (|).Example: color: rgb(0.4,0.84,0.37) GRAY-LEVEL SPECIFICATIONA gray-level specification in the form of gray(G) or just G, where G is 0.0-1.0 grey level (1.0 is white). No embeddded spaces are allowed. The values may be separated by a comma (as above), or by color (:), dash (-), or pipe (|).Please note that PostScript printers can vary considerably as to the relative darkness of a rendered grey area. Example: color: gray(0.8) HSB SPECIFICATIONHSB color specifications are valid only with PostScript / EPS. An HSB (hue saturation and brightness) specification in the form of hsb(H,S,B), where R, G, B are values from 0.0 to 1.0. No embedded spaces are allowed. The values may be separated by a comma (as above), or by color (:), dash (-), or pipe (|).CMYK SPECIFICATIONCMYK color specifications are valid only with PostScript / EPS. A CMYK (cyan, magenta, yellow, black) specification in the form of cmyk(C,M,Y,K) where C, M, Y, and K are values from 0.0 through 1.0. No embedded spaces are allowed. The values may be separated by a comma (as above), or by color (:), dash (-), or pipe (|).HATCH PATTERNSHatch patterns may be used as colors to fill rectangular areas such as bars. These are most useful when rendering in PostScript for monochrome hard copy, for situations where the available gray-level gradations do not provide enough distinct variations. Hatch patterns are specified in the form of hatchn where n is 1 - 9. hatch1 is the lightest and hatch9 is the darkest. The hatch line color is always black. Hatch patterns may only be used to fill rectangular areas such as bars; they won't work for pie graphs or rangesweeps.
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 data display engine Copyright Steve Grubb 
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Markup created by unroff 1.0, December 10, 2002.