If you want to get rid of the yellow by changing it into something like cream or champagne, you may well be out of luck. Any dye that you apply to shift the color will darken the yellow material. The "darkness" of the existing yellow will be "added to" the "darkness" of the new color, if that makes sense. You will end up headed for tan or beige before you have any chance at a cream. You can change the color, but you can't keep it as "light" as it is now. The cost of a color shift will be a darkening of the end product.
The typical color of champagne is derived from the grapes used in the process of making the champagne. Even though some of the grapes used in champagne are red, champagne tends to be beige in color due to the fact that the grape skins are not crushed in the process of making champagne.
Thier the same colour cream and light brown
They are pretty similar.
Champagne horses are born with the color coat of tan like buckskin's.
Kir royal is Champagne with Cream de cassis
Champagne color is a pale, muted shade that is reminiscent of the color of dry champagne or pale beige with a touch of gold. It is a soft, elegant color that often has a subtle shimmer or sheen to it.
Champagne, fruits, chocolates, scented candles, whipped cream, lotions, ice in a bucket, champagne glasses, bath salts, his and hers bath robes, and incense.
Kir royal is Champagne with Cream de cassis
Champagne Gold Metallic
I'll assume you are asking about horse colors. Chestnut is one of the two base colors for horses (The other being black). Chestnut (also called Red). can be anywhere from a pale almost palomino color to a dark nearly black looking color, with the mane and tail the same color, darker, or lighter. Chestnut can become 'diluted' when the cream gene is present. One copy of cream added to chestnut will give a palomino, two copies and the color will be cremello.
Champagne diamonds are a type of colored diamond that have a light to medium brown color, resembling the hue of champagne. These diamonds are valued for their unique color and can vary in intensity and saturation, ranging from pale gold to deep amber. Champagne diamonds are a popular choice for jewelry as they exhibit warm and elegant tones.