A lora trained off of solid colors.
1.5 uses Dreamshaper v8, XL uses WowXLv3.
It works as a color booster, intensifying the color given in the prompt.
It has the opposite effect in negative, inhibiting the prompted color.
The XL version is more subtle, so you may need to use higher weights.
When used in the negative prompt, set to 2+ weight. This will eliminate the selected color from most of your generations.