Would a color picker help you? On the Mac, I use http://colorsnapper.com/, and if it's a webpage, I use https://chrome.google.com/webstore/detail/pendule.
You can hover over the desired color, and get the hex code. I would refer to How can I create a UIColor from a hex string? for details on converting from hex to UIColor, or use this handy web app.
(Note: ColorSnapper is not free, but it does have an iOS UIColor option that will eliminate the need for you to have to convert from hex yourself)
Use this extension to have all colors
extension UIColor {
class func cantaloupe() -> UIColor {
return UIColor(red:255/255, green:204/255, blue:102/255, alpha:1.0)
}
class func honeydew() -> UIColor {
return UIColor(red:204/255, green:255/255, blue:102/255, alpha:1.0)
}
class func spindrift() -> UIColor {
return UIColor(red:102/255, green:255/255, blue:204/255, alpha:1.0)
}
class func sky() -> UIColor {
return UIColor(red:102/255, green:204/255, blue:255/255, alpha:1.0)
}
class func lavender() -> UIColor {
return UIColor(red:204/255, green:102/255, blue:255/255, alpha:1.0)
}
class func carnation() -> UIColor {
return UIColor(red:255/255, green:111/255, blue:207/255, alpha:1.0)
}
class func licorice() -> UIColor {
return UIColor(red:0/255, green:0/255, blue:0/255, alpha:1.0)
}
class func snow() -> UIColor {
return UIColor(red:255/255, green:255/255, blue:255/255, alpha:1.0)
}
class func salmon() -> UIColor {
return UIColor(red:255/255, green:102/255, blue:102/255, alpha:1.0)
}
class func banana() -> UIColor {
return UIColor(red:255/255, green:255/255, blue:102/255, alpha:1.0)
}
class func flora() -> UIColor {
return UIColor(red:102/255, green:255/255, blue:102/255, alpha:1.0)
}
class func ice() -> UIColor {
return UIColor(red:102/255, green:255/255, blue:255/255, alpha:1.0)
}
class func orchid() -> UIColor {
return UIColor(red:102/255, green:102/255, blue:255/255, alpha:1.0)
}
class func bubblegum() -> UIColor {
return UIColor(red:255/255, green:102/255, blue:255/255, alpha:1.0)
}
class func lead() -> UIColor {
return UIColor(red:25/255, green:25/255, blue:25/255, alpha:1.0)
}
class func mercury() -> UIColor {
return UIColor(red:230/255, green:230/255, blue:230/255, alpha:1.0)
}
class func tangerine() -> UIColor {
return UIColor(red:255/255, green:128/255, blue:0/255, alpha:1.0)
}
class func lime() -> UIColor {
return UIColor(red:128/255, green:255/255, blue:0/255, alpha:1.0)
}
class func seafoam() -> UIColor {
return UIColor(red:0/255, green:255/255, blue:128/255, alpha:1.0)
}
class func aqua() -> UIColor {
return UIColor(red:0/255, green:128/255, blue:255/255, alpha:1.0)
}
class func grape() -> UIColor {
return UIColor(red:128/255, green:0/255, blue:255/255, alpha:1.0)
}
class func strawberry() -> UIColor {
return UIColor(red:255/255, green:0/255, blue:128/255, alpha:1.0)
}
class func tungsten() -> UIColor {
return UIColor(red:51/255, green:51/255, blue:51/255, alpha:1.0)
}
class func silver() -> UIColor {
return UIColor(red:204/255, green:204/255, blue:204/255, alpha:1.0)
}
class func maraschino() -> UIColor {
return UIColor(red:255/255, green:0/255, blue:0/255, alpha:1.0)
}
class func lemon() -> UIColor {
return UIColor(red:255/255, green:255/255, blue:0/255, alpha:1.0)
}
class func spring() -> UIColor {
return UIColor(red:0/255, green:255/255, blue:0/255, alpha:1.0)
}
class func turquoise() -> UIColor {
return UIColor(red:0/255, green:255/255, blue:255/255, alpha:1.0)
}
class func blueberry() -> UIColor {
return UIColor(red:0/255, green:0/255, blue:255/255, alpha:1.0)
}
class func magenta() -> UIColor {
return UIColor(red:255/255, green:0/255, blue:255/255, alpha:1.0)
}
class func iron() -> UIColor {
return UIColor(red:76/255, green:76/255, blue:76/255, alpha:1.0)
}
class func magnesium() -> UIColor {
return UIColor(red:179/255, green:179/255, blue:179/255, alpha:1.0)
}
class func mocha() -> UIColor {
return UIColor(red:128/255, green:64/255, blue:0/255, alpha:1.0)
}
class func fern() -> UIColor {
return UIColor(red:64/255, green:128/255, blue:0/255, alpha:1.0)
}
class func moss() -> UIColor {
return UIColor(red:0/255, green:128/255, blue:64/255, alpha:1.0)
}
class func ocean() -> UIColor {
return UIColor(red:0/255, green:64/255, blue:128/255, alpha:1.0)
}
class func eggplant() -> UIColor {
return UIColor(red:64/255, green:0/255, blue:128/255, alpha:1.0)
}
class func maroon() -> UIColor {
return UIColor(red:128/255, green:0/255, blue:64/255, alpha:1.0)
}
class func steel() -> UIColor {
return UIColor(red:102/255, green:102/255, blue:102/255, alpha:1.0)
}
class func aluminium() -> UIColor {
return UIColor(red:153/255, green:153/255, blue:153/255, alpha:1.0)
}
class func cayenne() -> UIColor {
return UIColor(red:128/255, green:0/255, blue:0/255, alpha:1.0)
}
class func asparagus() -> UIColor {
return UIColor(red:128/255, green:120/255, blue:0/255, alpha:1.0)
}
class func clover() -> UIColor {
return UIColor(red:0/255, green:128/255, blue:0/255, alpha:1.0)
}
class func teal() -> UIColor {
return UIColor(red:0/255, green:128/255, blue:128/255, alpha:1.0)
}
class func midnight() -> UIColor {
return UIColor(red:0/255, green:0/255, blue:128/255, alpha:1.0)
}
class func plum() -> UIColor {
return UIColor(red:128/255, green:0/255, blue:128/255, alpha:1.0)
}
class func tin() -> UIColor {
return UIColor(red:127/255, green:127/255, blue:127/255, alpha:1.0)
}
class func nickel() -> UIColor {
return UIColor(red:128/255, green:128/255, blue:128/255, alpha:1.0)
}
}
The following is a slightly modified version of Timm Kent's answer above. This version uses class constants to avoid typing parentheses when referencing a color.
With constants, instead of typing this:
let myColor = UIColor.cantaloupe()
You can type this:
let myColor = UIColor.cantaloupe
The updated extension looks like this:
import UIKit
extension UIColor
{
static let aluminum = UIColor(red:153/255, green:153/255, blue:153/255, alpha:1.0)
static let aqua = UIColor(red:0/255, green:128/255, blue:255/255, alpha:1.0)
static let asparagus = UIColor(red:128/255, green:120/255, blue:0/255, alpha:1.0)
static let banana = UIColor(red:255/255, green:255/255, blue:102/255, alpha:1.0)
static let blueberry = UIColor(red:0/255, green:0/255, blue:255/255, alpha:1.0)
static let bubblegum = UIColor(red:255/255, green:102/255, blue:255/255, alpha:1.0)
static let cantalope = UIColor(red:255/255, green:204/255, blue:102/255, alpha:1.0)
static let carnation = UIColor(red:255/255, green:111/255, blue:207/255, alpha:1.0)
static let cayenne = UIColor(red:128/255, green:0/255, blue:0/255, alpha:1.0)
static let clover = UIColor(red:0/255, green:128/255, blue:0/255, alpha:1.0)
static let eggplant = UIColor(red:64/255, green:0/255, blue:128/255, alpha:1.0)
static let fern = UIColor(red:64/255, green:128/255, blue:0/255, alpha:1.0)
static let flora = UIColor(red:102/255, green:255/255, blue:102/255, alpha:1.0)
static let grape = UIColor(red:128/255, green:0/255, blue:255/255, alpha:1.0)
static let honeydew = UIColor(red:204/255, green:255/255, blue:102/255, alpha:1.0)
static let ice = UIColor(red:102/255, green:255/255, blue:255/255, alpha:1.0)
static let iron = UIColor(red:76/255, green:76/255, blue:76/255, alpha:1.0)
static let lavender = UIColor(red:204/255, green:102/255, blue:255/255, alpha:1.0)
static let lead = UIColor(red:25/255, green:25/255, blue:25/255, alpha:1.0)
static let lemon = UIColor(red:255/255, green:255/255, blue:0/255, alpha:1.0)
static let licorice = UIColor(red:0/255, green:0/255, blue:0/255, alpha:1.0)
static let lime = UIColor(red:128/255, green:255/255, blue:0/255, alpha:1.0)
static let magenta = UIColor(red:255/255, green:0/255, blue:255/255, alpha:1.0)
static let magnesium = UIColor(red:179/255, green:179/255, blue:179/255, alpha:1.0)
static let maraschino = UIColor(red:255/255, green:0/255, blue:0/255, alpha:1.0)
static let maroon = UIColor(red:128/255, green:0/255, blue:64/255, alpha:1.0)
static let mercury = UIColor(red:230/255, green:230/255, blue:230/255, alpha:1.0)
static let midnight = UIColor(red:0/255, green:0/255, blue:128/255, alpha:1.0)
static let mocha = UIColor(red:128/255, green:64/255, blue:0/255, alpha:1.0)
static let moss = UIColor(red:0/255, green:128/255, blue:64/255, alpha:1.0)
static let nickel = UIColor(red:128/255, green:128/255, blue:128/255, alpha:1.0)
static let ocean = UIColor(red:0/255, green:64/255, blue:128/255, alpha:1.0)
static let orchid = UIColor(red:102/255, green:102/255, blue:255/255, alpha:1.0)
static let plum = UIColor(red:128/255, green:0/255, blue:128/255, alpha:1.0)
static let salmon = UIColor(red:255/255, green:102/255, blue:102/255, alpha:1.0)
static let seafoam = UIColor(red:0/255, green:255/255, blue:128/255, alpha:1.0)
static let silver = UIColor(red:204/255, green:204/255, blue:204/255, alpha:1.0)
static let sky = UIColor(red:102/255, green:204/255, blue:255/255, alpha:1.0)
static let snow = UIColor(red:255/255, green:255/255, blue:255/255, alpha:1.0)
static let spindrift = UIColor(red:102/255, green:255/255, blue:204/255, alpha:1.0)
static let spring = UIColor(red:0/255, green:255/255, blue:0/255, alpha:1.0)
static let steel = UIColor(red:102/255, green:102/255, blue:102/255, alpha:1.0)
static let strawberry = UIColor(red:255/255, green:0/255, blue:128/255, alpha:1.0)
static let tangerine = UIColor(red:255/255, green:128/255, blue:0/255, alpha:1.0)
static let teal = UIColor(red:0/255, green:128/255, blue:128/255, alpha:1.0)
static let tin = UIColor(red:127/255, green:127/255, blue:127/255, alpha:1.0)
static let tungsten = UIColor(red:51/255, green:51/255, blue:51/255, alpha:1.0)
static let turquoise = UIColor(red:0/255, green:255/255, blue:255/255, alpha:1.0)
}
P.S. Also fixed typos cantalope -> cantaloupe and aluminium -> aluminum (as in XCode) and sorted color names alphabetically. Color codes are not verified though.
