my own color

[Axel Dessecker]

Am Dienstag, 14. März 2023, 16:02:18 CET schrieb Patrick Dupre:
> > Sent: Tuesday, March 14, 2023 at 3:55 PM
> > From: "Patrick Dupre" <pdupre at gmx.com>
> > To: "Axel Dessecker" <a.dessecker at krimz.de>
> > Cc: "lyx" <lyx-users at lists.lyx.org>
> > Subject: Re: my own color
> > 
> > > Sent: Monday, March 13, 2023 at 5:51 PM
> > > From: "Axel Dessecker" <a.dessecker at krimz.de>
> > > To: "lyx" <lyx-users at lists.lyx.org>
> > > Cc: "Patrick Dupre" <pdupre at gmx.com>
> > > Subject: Re: my own color
> > > 
> > > Am Montag, 13. März 2023, 17:42:18 CET schrieb Patrick Dupre:
> > > > Hello,
> > > > 
> > > > Can I set my own colors?
> > > > For example, I would like to have in rgb
> > > > FFD700
> > > > ?
> > > > 
> > > > Thank
> > > > 
> > > > ======================================================================
> > > > =====
> > > > 
> > > >  Patrick DUPRÉ                                 | | email:
> > > >  pdupre at gmx.com
> > > >  Laboratoire interdisciplinaire Carnot de Bourgogne
> > > >  9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
> > > >  Tel: +33 (0)380395988                    | | Room# D114A
> > > > 
> > > > ======================================================================
> > > > =====
> > > 
> > > Patrick,
> > > 
> > > Have a look at the xcolor package. You can set your favourite colours in
> > > the preamble.
> > > 
> > > Axel
> > 
> > Assuming that I do:
> > \definecolor{Gold}{RGB}{255,119,0}
> 
> And how I do use it in a formula?
> how can I get {\color{Gold}}

If I get you right, you are struggling with coloured formulas. See subsection 
11.3 of the Math manual. I don't know if bug #5269 is still around.