SMT LED part source (can find them from Digi-Key) www.digi-key.com
Amber as seen in first photo at top. A bit too red #160-1185-1-ND
Green #160-1188-1-ND (same as stock LEDs)
Yellow #160-1189-1-ND (best match for color with speedo)
BLUE #L62206CT-ND (may now work since it needs a higher voltage) There is a photoshoped (fake) image of a simulated blue display in the image gallery. Also these blue LEDs are very expensive!