Any place that the dye can't reach will stay white, or a lighter color, of course. The gradations of color from intense to light can be beautiful. You can accomplish this by folding the fabric, tieing it with string, using rubber bands, etc. If you don't tie, but just apply the dye directly, you need more space and can do fewer garments or pieces of fabric at a time. Ways to Tie Fold a piece of clothing in vertical pleats, and you'll end up with horizontal stripes.
Diagonal pleats make a nice effect.
Stitch a loose basting stitch in any shape you like, then pull the threads tight for another form of tie-dyeing that can have really cool results. For concentric circles, grab the cloth where you want the center to be, and pull, until you've more or less made a long tube of the garment, then apply rubber bands at intervals along the fabric. For the now-traditional spiral, you lay the garment on a flat smooth surface, smooth out all the wrinkles, then make a small pleat right across where you want the center to be. Grab the very center of that pleat with a clothes pin, and begin to twist. Color Mixing You can make all the colors you need by mixing lemon yellow, fuchsia, and turquoise.