As far as I remember, Color>>#r:g:b: expects 3 numbers between 0 and 1, instead of integers from 0 to 255.
Inspecting a color using the fractions proposed by Wolframalpha gives you the expected color: Color r: 0.06 g: 0.39 b: 0.39 Cheers, Alejandro > On Sep 28, 2015, at 11:07 PM, Offray Vladimir Luna Cárdenas > <off...@riseup.net> wrote: > > Hi, > > At a local workshop we're working with the Pharo tutorial and we use the > classical example of RGB colors for keyword messages. When we use the Prof > Stef's example we get the following screenshot: > > <djjjjajg..png> > > While executing the same color in Wolfram Alpha gives us: > > <dgcdicbd..png> > > As you can see, both colors are pretty different. Which is the reason behind > the differences in the color that is shown in Pharo and the one in WA? > > Cheers, > > Offray