A way of getting a corresponding hex colour code given a Color object in Java?

Question

I've inspected the Java class documentation for Color and found that I can generate a Color object from a hex code string (e.g. "#FFFFFF") using the Color.decode(); method.

I would like to implement the reverse process for a project I am working on, but there doesn't seem to be a method already built in to the class for this.

Is there an easy way to do this?

Eyal Schneider · Accepted Answer · 2015-06-11 10:13:14Z

20

String.format("#%06x", color.getRGB() & 0x00FFFFFF)

The masking is used for removing the alpha component, in bits 24-31

edited Jun 11, 2015 at 10:13

answered Feb 27, 2013 at 14:03

Eyal Schneider

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Nikita Tkachenko · Accepted Answer · 2013-02-27 14:21:33Z

Color color = Color.BLUE; Formatter f = new Formatter(new StringBuffer("#")); f.format("%02X", color.getRed()); f.format("%02X", color.getGreen()); f.format("%02X", color.getBlue()); f.toString(); //#0000FF

Community · Accepted Answer · 2017-05-23 12:25:36Z

1

Read this: Getting Html color codes with a JColorChooser

The answer has a method to convert a color to it's hex value.

edited May 23, 2017 at 12:25

CommunityBot

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answered Feb 27, 2013 at 14:01

Toon Casteele

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Comments

ChrisK · Accepted Answer · 2014-12-21 16:50:27Z

There is another way. Thought I just add this alternative.

// ARGB = (255, 255, 0, 0) (Red) // hex -> "ffff0000" String hex = Integer.toHexString(color.getRGB()); // Reduced to RGB: hex -> "#ff0000" hex = "#" + hex.substring(2, hex.length());

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