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SG Colorchart on Black - Tutorial

vogelbekdier on 15. Mar, 2012 — Lang: No text

SG Colorchart on Black - Tutorial

  • Description

    I do not quit understand the colors of SG yet. Because it seems to be not the same as regular RGB or CMYK charts. Mixing Red and Green on Black should give Yellow, but that is actuallly not the case....
    The ring is made by going from 20/40/60/80% yellow on 100% red etc.
    20% yellow on 100% red is the same as 20% red on 100% yellow.

    Edit: Thanks to Ambro I now understand a bit more. The following is the case:
    What you see in the chart are the 'primary colors' of SG. This is not a regular RGB 8-bit colorsystem. Only the Red, black and White in SG are pure.

    R = 255,0,0
    G should be 0,255,0 this is not the case = not pure
    B should be 0,0,255 this is not the case = not pure
    K = 0,0,0
    W = 255,255,255

    Note: There is a big difference between colormixing with light (additive) or mixing with pigments on paper (subtractive).
    - With light the primary colors are:
    Red, Green and Blue (RGB)
    - With pigments the primary colors are:
    Red, Yellow and Blue or better Cyan, Magenta, Yellow and blacK (CMYK) (think of printerink).

    - With light mixing:
    Red and Green gives Yellow
    Green and Blue gives Cyan
    Blue and Red gives Magenta
    Note that in SG this does not work this way. SG has no regular 8-bit colorsystem.

    This strip is a reply to Variations on a 4 Colour Pallette, Purple and Green using Opacity and Inversion, SG for DUMMIES Contest!
    Tags:
    color, colorstudy, tutorial
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Comments

  • Emperor
    Magique 18.3.2012
    :-)
  • Shizzle
    calm 18.3.2012
    Faved!
  • Shizzle
    calm 18.3.2012
    How could I have missed this one? It's brilliant & I'm beginning to think you are too. :-)
  • Duke
    bithex96 17.3.2012
    You know how to control the colors!
  • God
    Ambrosius77 16.3.2012
    color mixing here is like adding the color channels together and divide them half

    Thats why everything getting to be grey if you mix a lot of stuff together.
  • Bwana
    vogelbekdier 16.3.2012
    Haha Maori :-)))
  • God
    gregheffleydude1 15.3.2012
    Cool colors.
  • God
    Maoriman 15.3.2012
    Faved! But you and Occams are nerds^^
  • Shizzle
    AdaLovelace 15.3.2012
    Cool colours. :)
  • Shizzle
    ourWorld_Online 15.3.2012
    nice colors
  • Bwana
    vogelbekdier 15.3.2012
    @Occam,
    You are right about the Red and Green giving brown.
  • Bwana
    vogelbekdier 15.3.2012
    @35sheep,
    Thanks, will do!
  • Bwana
    vogelbekdier 15.3.2012
    @OccamsR,

    I know about the difference between light and pigments (additive and subtractive systems).
    How SG works I did not know, so thanks. I will experminent later on. What I still have not worked out is what the primary colors in SG are. Do you mean the primary's should be RYB instead of RGB?
    - I cannot make Green from Yellow and Blue, which is strange (if the system would be RYB). Edit: And Yellow is the opposite of Blue, so cannot be a primary.
    - In the RGB system I cannot make Yellow by mixing 2 or 3.

    edited by owner

  • God
    35sheep 15.3.2012
    Great work - you should tag it 'tutorial' as well.
  • King
    OccamsRayzor 15.3.2012
    I think you're confusing pigments with how light behaves. The SG colours are approximations of how pigments behave, so red and green on black would make brown. An important difference, however, is found when reversing a colour (red to cyan for example). Because cyan is literally a negative of red, a 50% mixture of the two will give you a grey, since they cancel each other out.
  • God
    NooniePuuBunny 15.3.2012
    ^_^ SG isn't normal.
  • Bwana
    vogelbekdier 15.3.2012
    thanks, but i am wondering, because the Pink does not look like Magenta....
  • God
    opeluna1 15.3.2012
    looks very good though
    well done :)
  • Bwana
    vogelbekdier 15.3.2012
    The Green and the Pink seem to be the odd ones in this system.

Displaying 19 out of 19 comments.