I have the same problem with my red speedo. I ordered mine custom (Red face, white numbers during the day, red numbers at night). I figured the reason they don't offer my combo is that it doesn't look all that good.
Based on the pics I've seen, the other colors are WAY more intense. Mine also has the LEDs for turn signals and high beam, and as it shows in the above pic, even when they're unlit, they have a pale light that shines through. The odometer is really bright, and it overpowers the red. The high beam LED does, too.
Basically, all of the ancillary lights are brighter than the pointer and numbers, which is the opposite from what I'd like.
Not too thrilled with how they look, compared to my Autometer Cobalt, which had very intense, vivid lighting.