Variegated

Description
The head and shoulders to be of a distinct colour with a white spot or blaze on the forehead. Where a spot is present this should be centrally placed on the forehead, round or oval in shape and no bigger than the rat's eye. Blazes are a wedge shaped symmetrical blaze of white starting at the nose and extending up the face to the forehead. The blaze to cover the whisker bed and taper to a fine point midway between the eyes and the ears. Markings not to extend onto the cheeks or the eyes. The rest of the upper portion (back, sides and tail) of the rat's body to be white, evenly marked with patches and flecks of distinct colour, the colour to conform to a recognised colour variety. Underside (including belly, chest and throat) to be white, devoid of creamy tinge or staining.

Blazed Berkshires (Badgers)

Description:
As much of the underside of the rat as possible to be white, including belly, chest, throat and underside of the legs, the white not to extend up the sides of the body. Back feet to be white to the ankle, forelegs to be white to the elbow. Tail to be white to half its length. The body colour shall conform to a recognised colour variety. The white area shall be pure and devoid of any colour or staining. The defining feature of this variety is the blaze. This is to be a wedge shaped symmetrical blaze of white starting at the nose and extending up the face to the forehead. The blaze to cover the whisker bed and taper to a fine point midway between the eyes and the ears. Markings not to extend onto the cheeks or the eyes.

This marking is standardised in the UK with the
name Badger (NFRS AOV Marked)

Other Names: Blazed Berkshire

British Blue

Description: To be a deep steel blue without any brown coloration. Colour to be even with the belly colour matching the top. The colour of the fur when parted to be blue grey down to the skin.

This colour is recognised in all rat clubs with the name Blue, or British Blue (NFRS Self)

Other Names: Slate blue, English blue, American blue, grey

Black

Description
To be a deep solid black, devoid of dinginess and white hairs or patches.Base fur to be black. Foot colour to match top. Eyes black.

This colour is recognised in all rat clubs with the name Black (NFRS Self)

British Blue Agouti

Description: An attractive blend of
mid-blue ticking over a medium fawn ground. Undercolour to be blue down to the skin. Belly colour silver. Feet dove grey. Ears and tail to be covered with blue hairs. A brown tinge will be judged as a fault. Eyes black.

This colour is recognised with the name Blue Agouti (NFRS AOV)

Other Names: Opal, Blue Agouti

Berkshire
I may get the odd Berkshire out of my Blazed Berkshire & Variegated line

Description
To be symmetrically marked, with as much white on the chest and belly as possible. The white shall not extend up the sides of the body, the edges shall be clear cut and devoid of brindling. Back feet to be white to the ankle, forelegs to be white to half the leg. Tail to be white to half its length. The body colour shall conform to the recognised colour variety. The white area shall be pure and devoid of any colour or staining. A white spot on the forehead is desirable.

Agouti

While I am not breeding directly for Agouti, I might get some Agouti Kittens.

Description
To be a rich ruddy brown, evenly ticked with black guard hairs. Base fur dark grey to black. Belly fur to be silver grey. Foot colour to match top. Eyes black.