I need to rave about @pastelapp
Even if you don't need color palettes - the Developer menu under the gear on the Color Picker (inspector side) provides wonderful color syntax ready to go in #xcode

Color(red: 0.000, green: 0.502, blue: 0.251, opacity: 1.000)
WAY faster than typing it.👍😊 See alt text for options.

Many thanks to @stroughtonsmith !