Soap doesn't need added color.
Discussion
I know it doesn't NEED it, but colors add joy.
You should make it coffee colored because coffee is delicious and also the color of beavers who definitely love and drink coffee nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7qgmwaehxw309a6xsetxdaex2um59ehx7um5wgcjucm0d5hsqgqx3804s3ag6vmk3yk6993z6lq0ms00r9v0f0zyw8vsje42rm9f7g7438eh
I also don't need to have any additional ingredients in soap. A lot of colorants are not anything I would want to have on myself or in my septic system. I'm sure you'll use something that's not terrible, but I just don't see the point on a consumable item that is just going to add expense.
That's why I have the plain, unscented Tallow brother. For ppl that don't want it. Most ppl enjoy colors and scents.