couleur FFFFFF (Blanc)

Jan 03, 2020

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Bonjour,

je suis incapable de changer la couleur FFFFFF (blanc) avec Illustrator.  Quand je change la couleur FFFFFF pour par exemple FEFEFE (autre blanc) en CMYK la couleur revient toujour en FFFFFF.  Je dois imprimer avec de la couleur blanche mais je ne peux utiliser le FFFFFF car ce code avec mon imprimante est transparent.  J'espère que vous comprenez bien ce que je veux dire ! ! !

Merci à l'avance ... 

 

(traduction Google)

Hello
I am unable to change the color FFFFFF (white) with Illustrator. When I change the color FFFFFF for example FEFEFE (other white) in CMYK the color always comes back in FFFFFF. I have to print with white color but I can't use the FFFFFF because this code with my printer is transparent. I hope you understand what I mean!!!
Thanks in advance ...

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How to, Print and publish

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Jan 03, 2020 0
Most Valuable Participant ,
Jan 03, 2020

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If you don't have a PostScript printer, don't design in CMYK.

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Jan 03, 2020 0
Adobe Community Professional ,
Jan 03, 2020

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You want to print white color on dark background?

What kind of printer do you have?

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Jan 03, 2020 0
Jan 03, 2020

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Oui exactement sur fond foncé

imprimante a encre UV avec du Blanc

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Jan 03, 2020 0
Adobe Community Professional ,
Jan 03, 2020

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In that case what does the documentation say about vector files? How do they need to be set up?

I know this is possible with PNGs, but I'm not sure about vector files.

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Most Valuable Participant ,
Jan 03, 2020

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Chris,

 

It looks as if you are in RGB Color Mode and switch to CMYK in the Color palette, and if so, why look for CMYK values; you always get weird values.

 

And if you are in CMYK Color Mode why use the Web Safe codes instead of a very low K value such as 0.1% K or 0.4% K?

 

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Jan 03, 2020

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Tu as probablement raison. Nous avons essayé avec d'autres codes. Mais même si je change de code, il revient toujours en FFFFFF. En fait, nous cherchon la couleur la plus proche du blanc FFFFFF car nous devons imprimer en blanc mais le code FFFFFF avec notre imprimante c'est transparent.

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Jan 03, 2020 0
Jan 03, 2020

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Je viens de comprendre ce que tu veux dire.  Effectivement, j'ai changé le K à 1% et ça fonctionne bien pour le moment.  Reste à voir sur les autres projets.  Je te remercie de ton aide, je vois que tu connais très bien ma problématique... MERCI ! ! !

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Jan 03, 2020 0
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Adobe Community Professional ,
Jan 04, 2020

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@ChristP1, Je vous recommande d'écrire en anglais (international forum) et de faire une formation de base et d'étudier également la théorie des couleurs.

Vous avez besoin de «Spot-Color» pour la couleur blanche. Et oubliez les Hex-Codes!

Bonne continuation.

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Jan 04, 2020 0
Adobe Community Professional ,
Jan 03, 2020

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For the other white, try f9f9f9 instead of fefefe.  That should "stick".

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ça semble fonctionner mais le f9f9f9 devient f8f9f9... c'est compliqué ! ! !  Ce n'est pas blanc pure mais je crois que ca va fonctionner.  Mais je ne comprend pas pourquoi des fois ca fonctionne et d'autres fois ca ne fonctionne pas.  BIZARE!!!

Merci

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Most Valuable Participant ,
Jan 04, 2020

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For my part you are welcome, Chris (or is it Christ?).

 

Each change of letter/number in Hex colour code corresponds to a change of 1 in RGB colour code, in other words 1/255 of full colour; this again corresponds (roughly) to 0.4% in K.

 

The switch FF>FE corresponds to 255>254 (roughly 0>0.4% K), and F9>F8 corresponds to 249>248 (roughly 2.3>2.7% K).

 

You may expect fluctuations in Hex/RGB colours in CMYK Color mode.

 

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Jan 04, 2020 0
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