You may generate more interest by sticking with more conventional color/denomination combinations. I'd drop the white chip (and the 10000 denomination), and go with this lineup:
red no-denom
green 25
black 100
lavender 500
yellow 1000
orange 5000
blue 25000
In addition to the changes to the green and purple chips, you may want to go with a slightly darker spot on the yellow chip for more contrast, too.