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javacolors

Convert RGB values to color name

How can I convert a color in RGB format into a color name?

Examples:

  • (0, 0, 255) -> "blue"
  • (255, 0, 0) -> "red"
  • (128, 128, 128) -> "grey"
Solution
    1. Populate a list of "known" colors.

    2. For each known color compute: 

      rgbDistance = Math.abs(myColor.getRed() - colorI.getRed() + 
              Math.abs(myColor.getGreen() - colorI.getGreen()) +
              Math.abs(myColor.getBlue() - colorI.getBlue())

    3. Return the name of colorI for which rgbDistance was smallest.