Hi, In my flow I recall the value from a sensor and it can be between 0 and 1000. I want to change the int to a hex color, where 0 will be blue, 500 green and 1000 red. This will be use in World map to change the icon color from blue all the way to red relative the the sensor value. Do you have …

[image] "Colour mapping" - help needed to create RGB value General Here is an adaption of that code. As you didnt specify how you want RGB to be represented, I just spit out a whole bunch of different values (r,g,b,val,hex) in the payload object. Ignore the pink image no…

Thanks that is brilliant. Only question what nodes are these? [image]

You don't need them really, they were for demonstration only. But if you do, then look in the palette for node-red-contrib-image-tools.

[image] Steve-Mcl: node-red-contrib-image-tools Thanks, I saw they were only for the demo, just could not recall what they were, used them long time ago.

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Convert int to hex color

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Steve-Mcl 26 September 2020 21:22 2

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Convert int to hex color

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