Hex 2 R,g,b

[JimS]

Does anyone know a formula for converting a Hex value or a Decimal value for a color, into the correct R,G,B color value?


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[Corey]

I believe the script "rgb.lua" found in your AMS script gallery has a function to do that.

[JimS]

Thanks Corey, that Lua script is similar to what I’m after, but not quite. It will let me go from R,G,B to Decimal, or from R,G,B to Hex, but I want to go in the other direction. I want to change Hex to R,G,B and/or Decimal to R,G,B



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[Worm]

You can use this to get HEX to RGB, then use the other RGB.LUA to go from there

function Hex2RGB(sHexString)
	if String.Length(sHexString) ~= 6 then
		return 0,0,0
	else
		red = String.Left(sHexString,2)
		green = String.Mid(sHexString,3,2)
		blue = String.Right(sHexString,2)
		red = tonumber(red, 16).."";
		green = tonumber(green, 16).."";
		blue = tonumber(blue, 16).."";
		return red, green, blue
	end
end

red, green, blue = Hex2RGB("FFCCFF")
Dialog.Message("", red..", "..green..", "..blue)

[JimS]

That’s it! Thank you so much. It is so cool to have smart friends like you guys, thanks.




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[Worm]

one thing on that is that the LUA function returns a number (thanks Tig)

If you want the returned values to be numbers, remove the .."" in the function. Also as an after thought, you might want to return -1, -1, -1 if the Hex string isn't the correct length so you can test if the function was successful.

function Hex2RGB(sHexString)
	if String.Length(sHexString) ~= 6 then
		return -1, -1, -1
	else
		red = String.Left(sHexString,2)
		green = String.Mid(sHexString,3,2)
		blue = String.Right(sHexString,2)
		red = tonumber(red, 16);
		green = tonumber(green, 16);
		blue = tonumber(blue, 16);
		return red, green, blue
	end
end

red, green, blue = Hex2RGB("FFCCFF")
if red ~= -1 then
	Dialog.Message("", red..", "..green..", "..blue)
else
	Dialog.Message("","Function failed")
end

[JimS]

Wow! Thanks again Worm, your kindness is amazing.

I had looked through the forums before I posted, and I noticed functions that convert in other directions, but I couldn’t find this one, the one I most needed. Your help on this is very much appreciated.


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