From Left To Right- (1-2) Light Green, Normal (3-4) Sky, Normal

From Left To Right- (1-2) Dark Green, Normal (3-4) Cobalt, Normal

From Left To Right- (1-2 Juvenile) Olive, Normal (3-4 Juvenile) Mauve, Normal

From Left To Right- (1-2 Juvenile) Grey Green, Normal (3-4) Grey, Normal

Body Color: A normal budgie will have an even non-diluted shade of body color (body color will vary depending on whether they are yellow or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head, Throat Spot And Wing Markings: This is the normal pattern of a wild budgie. Their wing and head barring will be black with a yellow or white (edging depending on the body color) with solid black throat spots. 

Cheek Patches: Violet

Main Tail Feathers: Dark blue.

Feet And Leg Color: Blue to grey. 

Eye color and iris at maturity: Black eyes with white iris.
 
Mature Adult Cere Color: Medium to deep blue in males, and tan to light blue/white in females depending on if they are in breeding condition

Cheek Patches And Main Tail: Depth of blue in tail and cheek patches will vary with the dark factors a normal has, as you can see in the above link to tail and cheek patch photos.

Body Color Suffusion: The body color should not be on the head or wing markings of a well marked normal.

From Left To Right- (1-2) Light Green, Opaline (3-4) Sky, Opaline.

From Left To Right- (1-2) Dark Green,, Opaline (3-4) Cobalt, Opaline.

From Left To Right- (1-2) Olive, SF Violet, Opaline (3-4) Mauve, Opaline

From Left To Right- (1) Grey Green, Opaline (2-3) Grey, Opaline

Body Color: Opaline is a slightly diluting mutation. A Opaline budgie will have an even shade of up to 10% diluted body color (body color will vary depending on whether they are green or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head Barring Wing And Throat Spot Markings: Black with yellow or white edging along the tips of each feather in addition to the body color, with solid black throat spots. They will have a noticable V area on the head/shoulder area of lighter barring and body color. The primary flight feathers will have a larger white area when compared with a normal wing.  

Cheek Patches: Violet

Main Tail Feathers: Deep blue. Many also have white or yellow on the main tail feathers (see help to identify for examples).

Feet And Leg Color: Blue to grey

Eye Color And Iris At Maturity: Black eyes with white iris.

Mature Adult Cere Color: Medium to deep blue in males,. Light blue/white to tan in females depending on if they are in breeding condition.

Genetic Information: Opaline is sex-linked (located on the x chromosome) needing only one copy of the gene to be visual in a female, and two copies of the gene to be visible in males. For a female to have this mutation she must show it visually, while a male can have it in a split (hidden) form.

Cheek Patches And Main Tail: Depth of blue in tail and cheek patches will vary with dark factors, as you can see in the above link to tail and cheek patch photos.

From Left To Right- (1-2) Light Green, Cinnamon (2) Sky Cinnamon

From Left To Right- (1-2) Dark Green, Cinnamon (3-4) Cobalt, Cinnamon

From Left To Right- (1) Olive, SF Dominant Pied, Cinnamon (2) Olive, Cinnamon (3-4) Mauve, Cinamon

From Left To Right- Grey Green (2 Dark Factors) Cinnamon ( 3-4) Grey, Cinnamon

Body Color: Cinnamon Is a diluting mutation. A cinnamon budgie will have an even shade of up to 50% diluted body color (body color will vary depending on whether they are green or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head Barring Wing And Throat Spot Markings: Deep cinnamon brown with yellow or white edge depending on body color, with cinnamon throat spots.

Cheek Patches: Violet to lavandar

Main Tail Feathers: Deep to medium blue depending on dark factors

Feet And Leg Color: Pink

Eye color and iris at maturity: Black eyes with white iris. 
 
Mature Adult Cere Color: Medium to deep blue in males,. Light blue/white to tan in females depending on if they are in breeding condition.

Genetic Information: Cinnamon is sex-linked (located on the x chromosome) needing only one copy of the gene to be visual in a female, and two copies of the gene to be visible in males. For a female to have this mutation she must show it visually, while a male can have it in a split (hidden) form.
Cinnamon is co-dominant with INO, causing the lacewing mutation when both genes combine on the same chromosome.

Cheek Patches And Main Tail: Depth of color in tail and cheek patches will vary with the dark factors a cinnamon has, as you can see in the above link to tail and cheek patch photos.

Body Color Suffusion: The body color should not be on the head or wing markings of
a well marked cinnamon, with the exception being if they are also opaline.

From Left To Right- (1-2) Light Green, Greywing (3) Sky, SF Spangle, Greywing (4) Sky Greywing

From Left To Right- (1-2) Dark Green, Violet, Greywing (3-4) Cobalt, Greywing

From Left To Right- (1-2) Olive Green, Clearflight Pied, Greywing (3 Juvenile) Mauve,, Opaline, SF Yellowface II, Greywing

From Left To Right- (1-2) Grey Green, Greywing (3) Grey, Greywing

Body Color: Greywing is a diluting mutation. A greywing budgie will have an even shade
of up to 50% diluted body color (body color will vary depending on whether they are green or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head Barring Wing And Throat Spot Markings: Light to dark grey with yellow or white edge depending on body color, with grey throat spots. 

Cheek Patches: Light violet

Main Tail Feathers: Grey to blue or a combination of both

Feet And Leg Color: Blue, grey or a mix

Eye Color And Iris At Maturity: Black eyes
with white iris.

Mature Adult Cere Color: Medium to deep blue in males,. Light blue/white to tan in females depending on if they are in breeding
condition.

Genetic Information: With the greywing both males and females can be split for this mutation, but two copies of the gene (one from the father, one from the mother) must be present for a visual greywing.
Greywing is recessive with the exception of clearwing and dilute. Greywing, clearwing and dilute are all varieties of the same mutation. Greywing and clearwing are co-dominant, meaning that when combined they make the composite mutation of fullbody greywing. Greywing is dominant to the dilute mutation.

Cheek Patches And Main Tail: Depth of color in tail and cheek patches will vary with the dark factors a greywings has, as you can see in the above link to tail and cheek patch photos.

Body Color Suffusion: The body color should not be on the head or wing markings of a well marked greywing, with the exception being if they are also opaline.

Also referred to as a "White wing" or "Yellow wing"

From Left To Right- (1) Light Green, Clearwing (2-3) Sky, Clearwing

From Left To Right- (1-2 ) Dark Green, Clearwing (3) Cobalt, Violet, Clearwing

From Left To Right- (1-2 ) Olive Green, Clearwing

Body Color: Clearwing is a slightly diluting mutation. A Clearwing budgie will have an even shade of up to 10% diluted body color (body color will vary depending on whether they are green or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head Barring Wing And Throat Spot Markings: Light grey with a yellow or white edge (depending on body color, the lighter the wing markings the better) with light grey throat spots.

Cheek Patches: Violet

Main Tail Feathers: Light grey or yellow

Feet And Leg Color: Blue or grey

Eye Color And Iris At Maturity: Black eyes with white iris.

Mature Adult Cere Color: Medium to deep blue in males,. Light blue/white to tan in females depending on if they are in breeding condition.

Genetic Information: With the clearwing both males and females can be split for this mutation, but two copies of the gene (one from the father, one from the mother) must be present for a visual clearwing. 
Clearwing is recessive with the exception of greywing and dilute. Clearwing, greywing and dilute are all varieties of the same mutation. Clearwing and greywing are co-dominant, meaning that when combined they make the composite mutation of fullbody greywing. 
Clearwing is dominant to the dilute mutation.

Cheek Patches And Main Tail: Depth of color in tail and cheek patches will vary with the dark factors a clearwing has, as you can see in the above link to tail and cheek patch photos.

Body Color Suffusion: The body color should not be on the head or wing markings of a well marked clearwing, with the exception being if they are also opaline.

From Left To Right- (1) Light Green, Fullbody Greywing (2) Light Green, Opaline, Fullbody Greywing (3-4 Juvenile) Sky, Opaline, Fullbody Greywing

From Left To Right- (1) Dark Green, Violet, Opaline, Fullbody Greywing (2-3) Cobalt, Opaline, Fullbody Greywing

From Left To Right- (1-2 Juvenile) Mauve, Opaline, Fullbody Greywing

From Left To Right- (1-2) Grey, Fullbody Greywing

Body Color: Fullbody greywings are a combination of cleawing and greywing gene, and is aslightly diluting mutation. A fullbody greywing budgie will have an even shade of up to 10% diluted body color (body color will vary depending on whether they are green or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head Barring Wing And Throat Spot Markings: Light to dark grey with yellow or white edge (depending on body color) with grey throat spots. 

Cheek Patches: Violet

Main Tail Feathers: Grey to blue or a combination of both

Feet And Leg Color: Grey

Eye Color And Iris At Maturity: Black eyes with white iris.

Mature Adult Cere Color: Medium to deep blue in males,. Light blue/white to tan in
females depending on if they are in breeding condition.

Cheek Patches And Main Tail: Depth of color in tail and cheek patches will vary with the dark factors a fullbody greywing has, as you can see in the above link to tail and cheek patch photos.

Body Color Suffusion: The body color should not be on the head or wing markings of a well marked fullbody greywing, with the exception being if they are also opaline.

Also referred to as a "Yellow" or "White"

From Left To Right- (1-2) Light Green, Dilute (3-4) Sky, Opaline, Dilute

From Left To Right- (1) Dark Green, Dilute (2) Cobalt, Opaline, Dilute

From Left To Right- (1) Mauve, Dilute

From Left To Right- (1-2) Grey Green, Opaline, Dilute (3-4) Grey, Dilute

Body Color: Dilute is a diluting mutation. A Dilute budgie will have an even shade of 50-90% diluted body color (body color will vary depending on whether they are green or blue, and if they have any dark factors) on their chest, breast and rump where it will be the darkest.

Head Barring Wing And Throat Spot Markings: Pale grey with a yellow or white edge (depending on body color) with pale grey throat spots. 

Cheek Patches: Pale violet to pale blue

Main Tail Feathers: Pale yellow or grey

Feet And Leg Color: Pink to grey, some will be a mix

Eye Color And Iris At Maturity: Black eyes with white iris.

Mature Adult Cere Color: Medium to deep blue in males,. Light blue/white to tan in females depending on if they are in breeding
condition.

Cheek Patches And Main Tail: Depth of color will vary with the dark factors a dilute budgie has, as you can see in the above link to tail and cheek patch photos.

Body Color Suffusion: The body color should not be on the head or wing markings of a well marked dilute, with the exception being if they are also opaline.

From Left To Right (1)- Sky. Opaline. Clearwing. Sf Yellowface I (2)- Sky. Opaline. Clearwing. Df Yellowface II (3)- Sky. Opaline. Clearwing. Df Yellowface II

Rainbow is a combination mutation of a blue based budgie, opaline,  clearwing (or fullbody greywing) and one of the yellowface mutations.

Body Color: Sky, cobalt or mauve blue with full body color (10% or less dilution) depending on the specific dark factors. 

Head Barring Wing And Throat Spot Markings: White to medium grey

Cheek Patches: Medium to deep violet 

Main Tail Feathers: Grey with body color suffusion

Feet And Leg Color: Blue or grey

Eye Color And Iris At Maturity: Black eyes with white iris. 

Mature Adult Cere Color: Medium to deep blue in males. Light blue/white to tan in females depending on if they are in breeding condition.

What makes a true rainbow: A true rainbow is comprised of only the mutations mentioned above, blue, opaline, clearwing or fullbody greywing, and yellowface. 
Additional mutation combinations, such as spangle opaline yellowfaces, or other mutations in addition to those listed above such as pied etc are not considered true rainbows.