CoCo 3 and 256 colors

Apparently, if you use a composite monitor or TV set on a CoCo 3, you can just put bytes on the 640x192x4 color video mode and they create artifact color. You can get over 200 artifact colors that way with no special tricks other than a palette translation to know what byte value is what color.

4 thoughts on “CoCo 3 and 256 colors

    1. Allen Huffman Post author

      What I didn’t realize is that it was just an exciting mode using greyscale colors. I spent many years with a TV set on my CoCo 3. Wish I had realized this.

  1. Doug

    More than 256 colors are possible too. Palette changes, either full screen, or scan line with any of the non grey colors will bias the artifact colors.


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