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”

Answer

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.