Can try here https://doodad.dev/gradient-generator/ Looks like it could be multiple gradient layers linear and radial. Source: over 1 year ago

Before getting onto Xcode, you need to select the color or color combination that will represent your application. Tools like Adobe Color and Color Hunt can help you develop a palette that fits your application's brand and consequently appeals to your audience. Make sure to get the hexadecimal code for the respective color. - Source: dev.to / 23 days ago

Color Hunt - "Color Hunt was created with the goal of celebrating the beauty of colors, and to serve as a go-to resource for color inspiration.". - Source: dev.to / about 1 month ago

Finding thе pеrfеct color palеttе is simplifiеd with Color Hunt. It offеrs a curatеd collеction of bеautiful color schemes, catering to the aesthetic prеfеrеncеs of developers and designers alikе. - Source: dev.to / 6 months ago

Aside from this, your UI looks great but the colouring in light mode maybe could be abit different. It lacks contrast. Rn its mainly white so a user can lose interest. I will recommend this https://colorhunt.co/ for getting pallet. Source: 11 months ago

U can use https://colorhunt.co for colors that look good together. Source: 11 months ago