Bits 0 -2 & 4 - 6 are actually backwards for some reason, so it should read as:The attribute byte is a byte that defines certain attributes, and defining both foreground and background colors. The byte follows the format:
* Bits 0 - 2: Foreground color
o Bit 0: Red
o Bit 1: Green
o Bit 2: Blue
* Bit 3: Foreground Intensity
* Bits 4 - 6: Background color
o Bit 4: Red
o Bit 5: Green
o Bit 6: Blue
* Bit 7: Blinking or background intensity
Yes, it does seem odd. Until you think of it like the way we read English, right to left. So you'd start from bit 7 and read to bit 0, thus reading the color bits as R,G,B!* Bits 0 - 2: Foreground color
o Bit 0: Blue
o Bit 1: Green
o Bit 2: Red
* Bit 3: Foreground Intensity
* Bits 4 - 6: Background color
o Bit 4: Blue
o Bit 5: Green
o Bit 6: Red
* Bit 7: Blinking or background intensity
0x9A or 10011010b -- You get blinking green text with blue background.
Then try...
0xCA or 10001010b -- Same thing, but red background.
0x11 or 00010001b -- Totally blue, can't even see it if you have blue BG!
Not so weird when you think about it, is it?
But definitely a bit counter-intuitive when you read the bits as a number (sorta Little-Endian-ish, lol), rather than the way we read English words. This doesn't mean there's anything wrong with the author, it means there's something wrong with INTEL! 
With such a huge series, this sort of thing will happen to any writer.