do you mean that because of rounding doing it as I inferred would mean that
darken(lighten($c, 25%), 25%) == $c is false? I would expect it to be true so if I have a color I lighten it by 50% and then darken it by 50% I am back to the original color. On Wed, Aug 25, 2010 at 4:48 PM, Chris Eppstein <[email protected]> wrote: > Would you expect this to be true or false? > darken(lighten($c, 25%), 25%) == $c > -chris > > On Wed, Aug 25, 2010 at 4:46 PM, Noel <[email protected]> wrote: >> >> For what it's worth, as a outside observer just following along and >> having never used the function. My initial expectation upon reading >> darken($light-blue, 50%) was that it would be darkened by 50%. >> >> so in the example given >> arken(#ADC1CC, 50%) =~ #2F414B, since 74% - 50% = 24% >> >> I was expecting 74%/2 not 74%-50% >> >> Wonder what others would expect. >> >> >> On Wed, Aug 25, 2010 at 3:36 PM, Nathan Weizenbaum <[email protected]> >> wrote: >> > mix() will actually modify the saturation. darken() does darken the >> > color >> > without affecting hue and saturaton; it just does it on an absolute >> > scale. >> > So darken($light-blue, 50%) will lower the lightness by 50%, not make it >> > half as light. >> > >> > To get precisely the effect you want, you could do darken($light-blue, >> > lightness($light-blue)/2). However, I would hope that darken() on its >> > own >> > serve you well enough. >> > >> > As a side note, in Sass 3.2, we'll allow users to define their own >> > functions, so you can make a scale-lightness() function that does >> > something >> > like lighten($color, $scale * lightness($color)). >> > >> > On Wed, Aug 25, 2010 at 3:04 PM, BladeBronson <[email protected]> >> > wrote: >> >> >> >> Ah ha... I figured that SASS was too well-written for something this >> >> big to still be around. I honestly mean that. >> >> >> >> My first instinct to darken a color (and not affect hue or saturation) >> >> was to use the darken($light-blue, 50%) function. It looks like I >> >> should be using mix($light-blue, #000000) or mix($light-blue, #000000, >> >> XX%) for finer control. >> >> >> >> Thanks for clearing this up, fellas. >> >> >> >> >> >> On Aug 25, 2:15 pm, Nathan Weizenbaum <[email protected]> wrote: >> >> > On Wed, Aug 25, 2010 at 2:07 PM, BladeBronson >> >> > <[email protected]>wrote: >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > > Before I file this, I'm just trying to figure out how much of this >> >> > > I'm >> >> > > misunderstanding. :) >> >> > >> >> > > Using Photoshop orhttp://www.opentopia.com/tools/colcal/, my light >> >> > > blue color (#ADC1CC) has the following values: >> >> > > Hue: 201 >> >> > > Saturation: 15 >> >> > > Lightness: 80 >> >> > >> >> > > Using SASS: >> >> > > >> $c = #ADC1CC >> >> > > #adc1cc >> >> > > >> hue($c) >> >> > > 201.29deg >> >> > > >> saturation($c) >> >> > > 23.308% >> >> > > >> lightness($c) >> >> > > 73.922% >> >> > >> >> > > Saturation and Lightness are substantially off. Is this a bug, or >> >> > > expected? >> >> > >> >> > Note that on the link you gave, it lists hue, saturation, and >> >> > *brightness*. >> >> > This is a different color space than hue, saturation, and >> >> > *lightness*. >> >> > Confusing, I know. Seehttp://en.wikipedia.org/wiki/HSL_and_HSVfor an >> >> > overview of the difference. Since CSS3 uses HSL, so do we. >> >> >> >> -- >> >> You received this message because you are subscribed to the Google >> >> Groups >> >> "Haml" group. >> >> To post to this group, send email to [email protected]. >> >> To unsubscribe from this group, send email to >> >> [email protected]. >> >> For more options, visit this group at >> >> http://groups.google.com/group/haml?hl=en. >> >> >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Haml" group. >> > To post to this group, send email to [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]. >> > For more options, visit this group at >> > http://groups.google.com/group/haml?hl=en. >> > >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Haml" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/haml?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Haml" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/haml?hl=en. > -- You received this message because you are subscribed to the Google Groups "Haml" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/haml?hl=en.
