X = Core archetype color
o = Supporting archetype color

Graveyard		X	X	o	o
Artifacts	X	o	X	X		X
Sacrifice	o		X	X	o	o
Spells	o	X	o	X	o
Blink	X	X	o
Ramp		o	o		X	o
+1/+1 counters	X		X		X
Tokens	X			X	X
Midrange value		o	X	X	X	o

If you were to assign an archetype to each 3 color combination, it would look as follows:

- Abzan - +1/+1 counters
- Bant - Blink/Spells lose synergies
- Esper - Blink
- Grixis - Grayeyard/Spells/Midrange
- Jeskai - Spells/Blink
- Jund - Midrange/Sacrifice
- Mardu - Artifacts/Sacrifice
- Naya - Tokens
- Sultai - Graveyard/Midrange
- Temur - Midrange/Spells

While the archetypes are spread across 3 or more colors, that doesn't mean you should be aiming at drafting a 3-color deck from p1p1. Tight 2-color or 2-color + splash decks tend to yield more consistently good results ...(WIP)....