How do you convert RGBColor to an HTML-style string? [duplicate]

Question

If I run some color processing function, like:

Blend[RGBColor /@ {"#DC4E00", "#000000", "#822250", "#FCC11B"}]

I get back a RGBColor object:

RGBColor[0.5901960784313726, 0.29901960784313725, 0.10490196078431373]

Is there a simple way to convert that RGBColor to an HTML string, like:

"#813912"

$\begingroup$ closely related 18495 $\endgroup$
– Kuba ♦
Jan 13, 2016 at 20:29 — Kuba, Jan 13, 2016 at 20:29
$\begingroup$ Related: stackoverflow.com/q/5637709 $\endgroup$
– Karsten7
Jan 13, 2016 at 20:53 — Karsten7, Jan 13, 2016 at 20:53

m_goldberg · Accepted Answer · 2016-01-13 21:46:11Z

13

Seems like the function I was wanting was:

hexifyColor[color_RGBColor] := 
  StringJoin["#", IntegerString[Round[Level[color, 1]*255], 16, 2]]

m_goldberg

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answered Jan 13, 2016 at 20:20

d8uv

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Kuba · Accepted Answer · 2016-01-13 21:51:37Z

6

It is there, deep down, but I'm too lazy to dig...

hexColor = StringCases[
    ExportString[Style[1, #], "HTMLFragment"], 
    "color:" ~~ color__ ~~ "\"" :> color
][[1]] &


hexColor@Blue

"#0000ff"

answered Jan 13, 2016 at 21:51

Kuba♦

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2 Answers 2