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CAD tip CAD tip # 13900:

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If you are looking for the closest AutoCAD Color Index (ACI) hue to a given RGB color, you can use AutoCAD directly. When you set a specific RGB hue, it adds the closest ACI color to the entity properties. You can then find this ACI color in the DXF property 62 - see the LISP command:

(cdr(assoc 62(entget(car(entsel)))))

You can also find the closest ACI color without AutoCAD, using the online Color converter in the Converters section. When you pick or type in an RGB or CMYK hue, it will not only find the closest Pantone colors, but the closest color from AutoCAD's ACI palette will be selected in the ACAD select-box and its "color distance" - the difference between the original RGB color and the palette color - will be displayed in its tooltip.

See also the table RGB-ACI
ACADADTPlantACADMCivilMapACLT
100% *CAD
27.10.2023    52499×  
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See also:
Tip 13831:ReplMTcol - recoloring parts of text in paragraph Mtext.
Tip 13597:How to convert RGB color to Pantone, RAL, AutoCAD ACI, CMYK or vice versa?
Tip 11714:How to assign a RAL color to a DWG object and get its ACI equivalent?
Tip 10071:How to recolor layers from ACI to truecolor?
Tip 7969:Black and white printing of DWG files saved from Inventor.
Selected tip: How to copy DWG Properties from one drawing to another?


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