hex/rgb to Ansi256 - (Moved)

[Maxime]

Hello 
I am looking to transform a Hex color to the nearest color in Ansi256
can someone help me, thanks

[Melba23]

Moved to the appropriate AutoIt General Help and Support forum, as the Developer General Discussion forum very clearly states:

Quote

General development and scripting discussions.

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Do not create AutoIt-related topics here, use the AutoIt General Help and Support or AutoIt Technical Discussion forums.

Moderation Team

[argumentum]

4 minutes ago, Maxime said:

... can someone help me ...

https://www.ditig.com/256-colors-cheat-sheet

so, the hex is the RGB in 0xRR, 0xGG, 0xBB, so that the rgb(RR,GG,BB) is 0xRRGGBB. So in hex, FF is 255 Decimal. Zero is zero. Its simple really.
Unless you explain your limitation in code, I don't know what else to tell you.

[Maxime]

hello, in fact in hex I have a palette of 16,777,216 colors. I would like by entering a value to give me the color closest to the palette of 256 colors

[Maxime]

and not a set of the 3 colors

[argumentum]

...this is above my experience level.
Surely someone more knowledgeable will come along to answer your post. 

[Maxime]

for example

when i have

#008000 the result is color 2 in Xterm Number

#008001 the result is color 2 in Xterm Number

 

[Maxime]

i find

https://codegolf.stackexchange.com/questions/156918/rgb-to-xterm-color-converter

but is not in autoit language

 

[Nine]

#include <color.au3>

Local $rgb = 0x8A9B7C
Local $r = _ColorGetRed($rgb), $g = _ColorGetGreen($rgb), $b = _ColorGetBlue($rgb)
Local $color = Round(($r*6/256)*36) + Round(($g*6/256)*6) + Round($b*6/256)
ConsoleWrite($color & @CRLF)

RGB is pretty much the same as 256 colors, except the span is smaller...

edit : ofc it will depend on which terminal you are displaying it (your link refer to XTERM)

Edited March 12, 2022 by Nine

[Maxime]

hello thanks, i'm testing