max(r, g, b) / 255A
0.2125*r/255 + 0.7154*g/255 + 0.0721*b/255Some
(r + g + b ) / (3 * 255)
You can play with Rich Franzen’s colourwheel Applet to sharpen your HSB intuition.
Click any ball to view the corresponding colour palette.
|Named Colours||Alphabetically (140)||BHS: by Brightness, Hue, Saturation||HBS: by Hue, Brightness, Saturation||SBH: by Saturation, Brightness, Hue||Java AWT Colours (16,777,216)|
|RGB: Numerically (140)||BSH: by Brightness, Saturation, Hue||HSB: by Hue, Saturation, Brightness||SHB: by Saturation, Hue, Brightness||Java Swing Colours (16,777,216)|
|Numbered Colours||HTML 3.2 (16)||Websafe (216)||Rainbow (4096)||Spectrum (401)||X11 (657)|
|Selected Colours||Pale (256)||Dark (2022)||Simple (105)||Greys (256)||Colour Schemes|
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