Random Color Illustrator Script

Randomize from a color range.

HSL Mode: Randomize the fill colors of all objects in your selection using an HSL (Hue, Saturation, Lightness) color range. Dial in the range by manipulating the handles on the color sliders or by manually typing in minimum and maximum values. Ranges can be independently set for hue, saturation, and lightness. For each object in your selection, a color is randomly generated from these HSL ranges, and then applied as an RGB color to the object. Fill color randomization is compatible with paths, compound paths, groups, and text.

RGB Mode: This mode works the same as the HSL mode, but the sliders are for Red, Green, and Blue values instead of HSL.

CMYK Mode: This mode works the same as the HSL mode, but the sliders are for Cyan, Magenta, Yellow, and Black values instead of HSL values. Colors are applied as CMYK colors, so if your document is in the RGB color mode, these applied CMYK colors will be converted to RGB and then applied.

Randomize from a color list or set.

You can also create a list of colors that Randomill will randomly choose from to apply to selected objects. These lists, or ‘sets’ can be created by importing fill colors from objects in the document, or by importing swatches from the swatches panel.

Most color types can be imported into the set with the exceptions being gradient meshes and free-form gradients. Patterns are unable to be previewed in the panel, but will work as expected when applied to objects in the document. In the UI screenshot, you can see a pattern, empty fill, linear gradient, radiant gradient, grayscale color, spot color, and RGB color all added in to the set.

A note on color conversion.

Please note: Using RGB or HSL color range randomization for documents that are in the CMYK color space may result in faded colors due to imperfect conversion of HSL/RGB colors into CMYK colors. The same applies for using CMYK color range randomization for documents that are in the RGB color space.