From: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Bruce Horrocks <ntg@scorecrow.com>
Subject: [NTG-context] Re: transparent color
Date: Mon, 6 May 2024 17:21:45 +0200 [thread overview]
Message-ID: <b48909b0-5733-d646-ffcc-b4e3d20ae888@gmail.com> (raw)
In-Reply-To: <26773B09-46D1-4F40-BE76-6F7B2B4A899C@scorecrow.com>
Bruce Horrocks schrieb am 06.05.2024 um 15:30:
>> On 6 May 2024, at 09:41, Hans van der Meer via ntg-context <ntg-context@ntg.nl> wrote:
>>
>> I would like to use a transparent version of an existing color. Thus
>> \definecolor[transparentcolor][color,t=0.2,a=1]
>> instead of
>> \definecolor[transparentcolor][r=..,g=..,b=..,t=0.2,a=1]
>> because I do not know the rgb values of the color that must be made transparent, only its name.
>>
>> How to accomplish?
> The Wiki page <https://wiki.contextgarden.net/Color> gives the source files for various sets of colours (built in, crayola etc) and the source has the RGB values in a fairly obvious format.
\definecolor [wolley] [\colorcomponents{yellow},t=0.5,a=1]
\starttext
%\showcolorcomponents [yellow]
\framed[background=color,backgroundcolor=darkblue,foregroundcolor=yellow]{yellow}
\framed[background=color,backgroundcolor=darkblue,foregroundcolor=wolley]{wolley}
\stoptext
Wolfgang
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next prev parent reply other threads:[~2024-05-06 15:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-06 8:41 [NTG-context] " Hans van der Meer via ntg-context
2024-05-06 9:20 ` [NTG-context] " Henning Hraban Ramm
2024-05-06 13:30 ` Bruce Horrocks
2024-05-06 15:21 ` Wolfgang Schuster [this message]
2024-05-06 14:01 ` Jacob Kauffmann via ntg-context
2024-05-06 14:15 ` Henning Hraban Ramm
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