Gnuplot/颜色

颜色规格

显式 rgb（红色、绿色、蓝色）值
- 十六进制字符串（如“#0000ff”）
- rgb 值（如“256”）
命名颜色
引用当前 PM3D 调色板的颜色值
- 调色板 cb -45 # 调色板当前 cb 范围中与 -45 对应的颜色
- 调色板 frac 0.3 # 沿着调色板的分数

rgbcolor "colorname" # e.g. "blue"
rgbcolor "0xRRGGBB" # string containing hexadecimal constant
rgbcolor "0xAARRGGBB" # string containing hexadecimal constant
rgbcolor "#RRGGBB" # string containing hexadecimal in x11 format
rgbcolor "#AARRGGBB" # string containing hexadecimal in x11 format
rgbcolor <integer val> # integer value representing AARRGGBB
rgbcolor variable # integer value is read from input file
palette frac <val> # <val> runs from 0 to 1
palette cb <value> # <val> lies within cbrange
palette z
variable # color index is read from input file
bgnd # background color
black