Inactive Tutor answered 7d
I can think of two methods.
Method 1:
- Open the Swatches panel by going to Window at the top of the screen. (Window > Swatches)
- Create a new color using either the Color Picker or the Color panel.
- Click New Swatch to add the color to the Swatches panel.
- Repeat this same process for as many colors as needed.
- To save the collection, open the Swatches panel menu by clicking on the little Hamburger icon in the top right corner of the Swatches panel, locate and click on Save Swatch Library as ASE...
Method 2: In case if you don't have any color ideas.
- Visit Adobe Color at https://color.adobe.com.
- Create your own color themes or browse themes created by other designers.
- Save the desired theme to your Adobe Creative Cloud account.
- In Illustrator, open Window > Libraries or Window > Adobe Color Themes.
- Access your saved themes and add them directly to your document's swatches.