rgb2name

Version 1.0.0.0 (5.02 KB) by matt dash
Names a color based on its RGB-triple colorspec. Knows over 400 color names.
1.3K Downloads
Updated 4 Dec 2008

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RGB2NAME returns a string containing the name of the input RGB triple. (Or a cell array of strings if an array is input.) This is a "brute force" approach that contains a large list of colors and their names, and uses a very simple nearest neighbor search to find the named color that is closest to the input color.

The included list has more than 400 color names, and it performs pretty well. There are a few regions of the color space where it isn't great, particularly with low-saturation colors.

This is mostly just for kicks, but I made it for a GUI that needs to ask the user about unnamed hg objects, so instead i can describe them to the user by color. Like "...the graph with the light red and very dark green lines..."

There is also a demo included (requires java) that names colors selected by the user in a jcolorchooser.

Cite As

matt dash (2024). rgb2name (https://www.mathworks.com/matlabcentral/fileexchange/22325-rgb2name), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2008a
Compatible with any release
Platform Compatibility
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Find more on Colormaps in Help Center and MATLAB Answers
Acknowledgements

Inspired: Convert between RGB and Color Names

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Version Published Release Notes
1.0.0.0