Here is a list of the 7 major chakras and their associated colors:
1st chakra - The ROOT
Primary color is red, other colors associated with the Root Chakra are black brown, and gray.
Gemstones like Garnet or Onyx, Red Jasper
2nd chakra - The Naval
Primary color is orange, others are all various shades of orange.
Gemstones like Carnelian, orange Zincite
3rd chakra - The Solar Plexus
Primary color is yellow, others are various shades of yellow.
Gemstones like Citrine, Yellow Sapphire, yellow topaz
4th chakra - The Heart
Primary color is green and shades of green, the secondary color is pink.
Gemstones like Rose Quartz or Green Tourmaline or aventurine
5th chakra - The Throat
Primary color is light blue like aqua or turquoise, secondary colors are various shades of lighter blues.
Gemstones like Turquoise or Blue Lace Agate
6th chakra - The Third eye ( or brow)
Primary color is dark blue or various shades of dark blue.
Gemstones like Lapis Lazuli or Sodalite
7th chakra - The Crown
Primary color is purple, the secondary colors are shades of purple and colorless (clear) or white.
Gemstones like Amethyst or Clear Quartz