Here are a few examples of the more common color mutation crosses and the expected percentages of offspring that will carry or exhibit the various colors. Remember that these are overall averages, and that it is not unusual to find, for example, a heterozygous beige male that produces more of one color than another instead of half beige and half standard as would be expected, just as it is not unusual to find a male that produces more offspring of one sex than the other.
Standard to Standard = 100% Standard
Standard to White = 50% Standard, 50% White
Standard to Beige (heterozygous) = 50% Standard, 50% Beige
Standard to Beige (homozygous) = 100% Heterozygous Beige
Standard to Black Velvet = 50% Standard, 50% Black Velvet
White to Beige (heterozygous) = 25% Standard, 25% White, 25% Beige, 25% Pink White (White and Beige)
White to Beige (homozygous) = 50% Pink White, 50% Heterozygous Beige
White to Black Velvet = 25% Standard, 25% White, 25% Black Velvet, 25% White and Black Velvet Mosaic
White to White = 25% Standard, 50% White, 25% Lethal factor (no offspring)
Beige (heterozygous) to Black Velvet = 25% Standard, 25% Beige, 25% Black Velvet, 25% TOV Beige
Beige (homozygous) to Black Velvet = 50% TOV Beige, 50% Heterozygous Beige
Beige (heterozygous) to Beige (heterozygous) = 25% Standard, 50% Heterozygous Beige, 25% Homozygous Beige
Beige (heterozygous) to Beige (homozygous) = 50% Heterozygous Beige, 50% Homozygous Beige
Beige (homozygous) to Beige (homozygous) = 100% Homozygous Beige
Black Velvet to Black Velvet = 25% Standard, 50% Black Velvet, 25% Lethal factor (no offspring)
Standard to Ebony, Sapphire or Violet = 100% Standard (Ebony, Sapphire or Violet carrier)
White, Beige, or Black Velvet to Ebony, Sapphire, or Violet = 50% Standard (Ebony, Sapphire, or Violet carrier), 50% White, Beige, or Black Velvet (Ebony, Sapphire or Violet carrier)
Ebony to Ebony = 100% Ebony
Sapphire to Sapphire = 100% Sapphire
Violet to Violet = 100% Violet
Ebony to Sapphire = 100% Standard (Ebony and Sapphire carrier)
Ebony to Violet = 100% Standard (Ebony and Violet carrier)
Sapphire to Violet = 100% Standard (Sapphire and Violet carrier)
TOV Violet (Sapphire, Ebony) to Violet (Sapphire, Ebony) = 50% Violet (Sapphire, Ebony), 50% TOV Violet (TOV Sapphire, TOV Ebony)
TOV Violet (TOV Sapphire, TOV Ebony) to TOV Violet (TOV Sapphire, TOV Ebony) = 25% Violet (Sapphire, Ebony), 50% TOV Violet (TOV Sapphire, TOV Ebony), 25% Lethal factor(no offspring)
Standard to White = 50% Standard, 50% White
Standard to Beige (heterozygous) = 50% Standard, 50% Beige
Standard to Beige (homozygous) = 100% Heterozygous Beige
Standard to Black Velvet = 50% Standard, 50% Black Velvet
White to Beige (heterozygous) = 25% Standard, 25% White, 25% Beige, 25% Pink White (White and Beige)
White to Beige (homozygous) = 50% Pink White, 50% Heterozygous Beige
White to Black Velvet = 25% Standard, 25% White, 25% Black Velvet, 25% White and Black Velvet Mosaic
White to White = 25% Standard, 50% White, 25% Lethal factor (no offspring)
Beige (heterozygous) to Black Velvet = 25% Standard, 25% Beige, 25% Black Velvet, 25% TOV Beige
Beige (homozygous) to Black Velvet = 50% TOV Beige, 50% Heterozygous Beige
Beige (heterozygous) to Beige (heterozygous) = 25% Standard, 50% Heterozygous Beige, 25% Homozygous Beige
Beige (heterozygous) to Beige (homozygous) = 50% Heterozygous Beige, 50% Homozygous Beige
Beige (homozygous) to Beige (homozygous) = 100% Homozygous Beige
Black Velvet to Black Velvet = 25% Standard, 50% Black Velvet, 25% Lethal factor (no offspring)
Standard to Ebony, Sapphire or Violet = 100% Standard (Ebony, Sapphire or Violet carrier)
White, Beige, or Black Velvet to Ebony, Sapphire, or Violet = 50% Standard (Ebony, Sapphire, or Violet carrier), 50% White, Beige, or Black Velvet (Ebony, Sapphire or Violet carrier)
Ebony to Ebony = 100% Ebony
Sapphire to Sapphire = 100% Sapphire
Violet to Violet = 100% Violet
Ebony to Sapphire = 100% Standard (Ebony and Sapphire carrier)
Ebony to Violet = 100% Standard (Ebony and Violet carrier)
Sapphire to Violet = 100% Standard (Sapphire and Violet carrier)
TOV Violet (Sapphire, Ebony) to Violet (Sapphire, Ebony) = 50% Violet (Sapphire, Ebony), 50% TOV Violet (TOV Sapphire, TOV Ebony)
TOV Violet (TOV Sapphire, TOV Ebony) to TOV Violet (TOV Sapphire, TOV Ebony) = 25% Violet (Sapphire, Ebony), 50% TOV Violet (TOV Sapphire, TOV Ebony), 25% Lethal factor(no offspring)
There are many other crosses, but this will provide a basic understanding of many of the most popular crosses and percentages expected. Please the see section titled Color Mutation Hybrids for more on hybrids.