Colorschemes

Plots supports all colorschemes from ColorSchemes.jl. They can be used as a gradient or as a palette and are passed as a symbol holding their name to cgrad or palette.

plot(
    [x -> sin(x - a) for a in range(0, π / 2, length = 5)], 0, 2π;
    palette = :Dark2_5,
)

function f(x, y)
    r = sqrt(x^2 + y^2)
    return cos(r) / (1 + r)
end
x = range(0, 2π, length = 30)
heatmap(x, x, f, c = :thermal)

ColorPalette

Plots chooses colors for series automatically from the palette passed to the color_palette attribute. The attribute accepts symbols of colorscheme names or ColorPalette objects. Color palettes can be constructed with palette(cs, [n]) where cs can be a Symbol, a vector of colors, a ColorScheme, ColorPalette or ColorGradient. The optional argument n decides how many colors to choose from cs.

palette(:tab10)

palette([:purple, :green], 7)

ColorGradient

For heatmap, surface, contour or line_z, marker_z and line_z Plots.jl chooses colors from a ColorGradient. If not specified, the default ColorGradient :inferno is used. A different gradient can be selected by passing a symbol for a colorscheme name to the seriescolor attribute. For more detailed configuration, the color attributes also accept a ColorGradient object. Color gradients can be constructed with

cgrad(cs, [z], alpha = nothing, rev = false, scale = nothing, categorical = nothing)

where cs can be a Symbol, a vector of colors, a ColorScheme, ColorPalette or ColorGradient.

cgrad(:acton)

You can pass a vector of values between 0 and 1 as second argument to specify positions of color transitions.

cgrad([:orange, :blue], [0.1, 0.3, 0.8])

With rev = true the colorscheme colors are reversed.

cgrad(:thermal, rev = true)

Setting categorical = true returns a CategoricalColorGradient that only chooses from a discrete set of colors without interpolating continuously. The optional second argument determines how many colors to choose from the colorscheme. They are distributed uniformly along the colorscheme colors.

cgrad(:matter, 5, categorical = true)

Categorical gradients also accept a vector for positions of color transitions and can be reversed.

cgrad(:matter, [0.1, 0.3, 0.8], rev = true, categorical = true)

The distribution of color selection can be scaled with the scale keyword argument which accepts :log, :log10, :ln, :log2, :exp or a function to be applied on the color position values between 0 and 1.

cgrad(:roma, scale = :log)

Categorical gradients can also be scaled.

cgrad(:roma, 10, categorical = true, scale = :exp)

Pre-defined ColorSchemes

misc

These colorschemes are not defined or provide different colors in ColorSchemes.jl They are kept for compatibility with Plots behavior before v1.1.0.

The following colorschemes are defined by ColorSchemes.jl.

cmocean

scientific