Sweetercolor

Sweetercolor is a color extension library for Swift.* Fork on GitHub.

*It has Photoshop style color blending!

// Example of hex initializer

let sun = UIColor(hex: "#FBF002")

// Example of RGB 0-255 initializer

let pink = UIColor(r: 241, g: 126, b: 177)

let container = UIView(frame: CGRect(x: 0, y: 0, width: 888, height: 250))

container.backgroundColor = pink

let label = UILabel(frame: container.frame)

label.text = "Sweet"

label.textColor = sun

// Example of overlay similar to Photoshop with reduced alpha

// This allows us to get a more natural ambient shadow

label.layer.shadowColor = pink.overlayBlack.with(alpha: 0.6).cgColor

Included methods

isEqual(to color: UIColor, strict: Bool = true) → Bool

Comapre if two colors are equal. When strict is false, color within 1% of the comparing color is considered equal.
RGBA → [CGFloat]

Get the red, green, blue and alpha values. (0-1).
RGBA_8Bit → [CGFloat]

Get the 8 bit red, green, blue and alpha values. (0-255).
HSBA → [CGFloat]

Get the hue, saturation, brightness and alpha values. (0-1).
HSBA_8Bit → [CGFloat]

Get the 8 bit hue, saturation, brightness and alpha values. (0-255).
XYZ → [CGFloat]

Get the CIE XYZ values.
LAB → [CGFloat]

Get the CIE L*ab values.
luminance → CGFloat

Get the relative luminosity value of the color. This follows the W3 specs of luminosity to give weight to colors which humans perceive more of.
isDark → Bool

Determine if the color is dark based on the relative luminosity of the color.
isLight → Bool

Determine if the color is light based on the relative luminosity of the color.
isDarker(than color: UIColor) → Bool

Determine if this colors is darker than the compared color based on the relative luminosity of both colors.
isLighter(than color: UIColor) → Bool

Determine if this colors is lighter than the compared color based on the relative luminosity of both colors.
isBlackOrWhite → Bool

Determine if this color is either black or white.
CIE94(compare color: UIColor) → CGFloat

Detemine the distance between two colors based on the way humans perceive them. Uses the CIE94 algorithm.
CIEDE2000(compare color: UIColor) → CGFloat

Detemine the distance between two colors based on the way humans perceive them. Uses the Sharma 2004 alteration of the CIEDE2000 algorithm.
contrastRatio(with color: UIColor) → CGFloat

Determine the contrast ratio between two colors. A low ratio implies there is a smaller contrast between the two colors. A higher ratio implies there is a larger contrast between the two colors.
isContrasting(with color: UIColor, strict: Bool) → Bool

Determine if two colors are contrasting or not based on the W3 standard.
fullContrastColor → UIColor

Get either black or white to contrast against a color.
with(alpha: CGFloat) → UIColor

Get a clone of this color with a different alpha value.
overlay(with color: UIColor) → UIColor

Get a new color with an overlay blend mode on top of this color. This is similar to Photoshop's overlay blend mode.
overlayBlack → UIColor

Get a new color if a black overlay was applied.
overlayWhite → UIColor

Get a new color if a white overlay was applied.
multiply(with color: UIColor) → UIColor

Get a new color with a multiply blend mode on top of this color. This is similar to Photoshop's multiply blend mode.
screen(with color: UIColor) → UIColor

Get a new color with a screen blend mode on top of this color. This is similar to Photoshop's screen blend mode.
complement → UIColor

Get the complement of this color on the hue wheel.

GitHub