You can't get the Rustoleum matched anywhere. I called their Customer service line, and they said they stopped making the pigments to custom color it.
If you mix it with some grey it might give you the kaki color your looking for, just be sure to measure everything Precisely to make sure each batch is the same.
GIves me an Idea,

I may buy a Quart of grey and see if mixing some of that in looks better than the straight sand color as well.
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- 1983 FJ60 - 229K
2.5" Man-a-fre HD leaf springs, HFS shocks
4runner Calipers, 4.11 thirds 33x10.50MT's Wilderness Roof Rack
CORN TACO - DD - 2005 Tacoma Double cab with Ethanol full flex converter
ARB Front bumper w. warn winch and PIAA lights
3" Toy Tec Lift Rock-tec rear bumper