Colours-color library, including 100 predefined colors and methods, and colour100

Colours-color library, including 100 predefined colors and methods, and colour100

Introduction

Colours-color library, including a variety of 100 predefined colors and methods, can simplify color-related development.

Project homepage: Colours

Latest example: Click to download

Get started with Cocoapods

pod 'Colours'

Manual Installation

Drag Colours. h and Colours. m into your project and introduce the header file as needed:

#import "Colours.h"

Use a palette, a set of predefined colors

Click here for details: 100 predefined colors

Use predefined colors

Colours predefines more than 100 colors, in the same way as the iOS system predefines:

[UIColor indigoColor]; // indigoColor is a color predefined by Colours.

Color-related tools and methods hexadecimal string and color conversion

UIColor *newColor = [UIColor colorFromHexString:@"#f587e4"];NSString *hexString = [newColor hexString];

Mutual conversion between RGBA and color. Mutual conversion between RGBA array and color

NSArray * colorArray = [[UIColor seafoamColor] rgbaArray]; // four NSNumber objects stored in the array represent the four values of RGBA, respectively. The value range is 0-1.UIColor * newColor = [UIColor colorFromRGBAArray: colorArray];

Mutual conversion between RGBA dictionary and color

The predefined four keys are:

• kColoursRGBA_R
• kColoursRGBA_G
• kColoursRGBA_B
• kColoursRGBA_A

NSDictionary * colorDict = [[UIColor seafoamColor] rgbaDictionary];UIColor * newColor = [UIColor colorFromRGBADictionary: colorDict]; // you can obtain a separate value: NSNumber * r = colorDict [kColoursRGBA_R];

HSBA array and color conversion

NSArray * colorArray = [[UIColor seafoamColor] hsbaArray]; // four nsnumbers are stored in the array, representing H (tone), S (color saturation), B (brightness ), A (transparency) value. NSDictionary * colorDict = [[UIColor seafoamColor] hsbaDictionary];

Mutual conversion between HSBA and colors

Similar to the conversion between RGBA and color, the predefined key is:

• Kcolourshsb_h color
• Kcolourshsb_s color saturation
• KColoursHSBA_ B color brightness
• Kcolourshsb_a transparency

NSArray *colorArray = [[UIColor seafoamColor] hsbaArray];NSDictionary *colorDict = [[UIColor seafoamColor] hsbaDictionary];UIColor *newColor1 = [UIColor colorFromHSBAArray:colorArray];UIColor *newColor2 = [UIColor colorFromHSBADictionary:colorDictionary];

Conversion between CIELAB and colors

Similar to the conversion between RGBA and color, the predefined key is:

• kColoursCIE_L
• kColoursCIE_A
• kColoursCIE_B
• kColoursCIE_alpha

NSArray *colorArray = [[UIColor seafoamColor] CIE_LabArray];NSDictionary *colorDict = [[UIColor seafoamColor] CIE_LabDictionary];UIColor *newColor1 = [UIColor colorFromCIE_LabArray:colorArray];UIColor *newColor2 = [UIColor colorFromCIE_LabDictionary:colorDictionary];

Conversion between CMYK and colors

Similar to the conversion of RGBA and color, the predefined key is:

• KColoursCMYK_C green
• KColoursCMYK_M red
• KColoursCMYK_Y yellow
• KColoursCMYK_K black

NSArray *colorArray = [[UIColor seafoamColor] cmykArray];NSDictionary *colorDict = [[UIColor seafoamColor] cmykDictionary];UIColor *newColor1 = [UIColor colorFromCMYKArray:colorArray];UIColor *newColor2 = [UIColor colorFromCMYKDictionary:colorDictionary];

Obtain all color information

The colorComponents method returns a dictionary containing all the keys pre-defined by RGBA, HSBA, CIE_LAB, and CMYK:

NSDictionary *components = [someColor colorComponents];CGFloat H = components[kColoursHSBA_H];CGFloat L = components[kColoursCIE_L];

If you only want a certain color information at a time, you can use the following method:

CGFloat R = [[UIColor tomatoColor] red];CGFloat G = [[UIColor tomatoColor] green];CGFloat B = [[UIColor tomatoColor] blue];CGFloat H = [[UIColor tomatoColor] hue];CGFloat S = [[UIColor tomatoColor] saturation];CGFloat B = [[UIColor tomatoColor] brightness];CGFloat CIE_L = [[UIColor tomatoColor] CIE_Lightness];CGFloat CIE_A = [[UIColor tomatoColor] CIE_a];CGFloat CIE_B = [[UIColor tomatoColor] CIE_b];CGFloat alpha = [[UIColor tomatoColor] alpha];

Color brightened/dimmed

// Value range: 0-> 1 UIColor * lighterColor = [[UIColor seafoamColor] lighten: 0.25f]; UIColor * darkerColor = [UIColor seafoamColor] darken: 0.25f];

Obtain contrast colors

// Depending on the given color, it will automatically form a black or white contrast. UIColor * contrastingColor = [[UIColor seafoamColor] blackOrWhiteContrastingColor];

Obtain complementary colors

// Returns a complementary color of a given color: The color and saturation remain unchanged. UIColor * complementary = [[UIColor seafoamColor] complementaryColor];

Obtains the difference between two colors.

// The difference here, taking into account the human senses, mathematical statistics algorithms, etc., is not a general RGB difference. CGFloat distance = [someColor distanceFromColor: someOtherColor type: ColorDistanceCIE94]; BOOL isNoticablySimilar = distance <threshold;

Multiple corresponding color schemes are generated based on one color.

The colorSchemeOfType method can be used to generate four beautiful and appropriate colors based on a certain color, and return all five colors in an array. for the same color, different schemes also produce different color combinations.

NSArray *colorScheme = [color colorSchemeOfType:ColorSchemeType];

Optional color scheme:

• ColorSchemeAnalagous approximate color
• ColorSchemeMonochromatic monochrome
• ColorSchemeTriad mixed color
• ColorSchemeComplementary complementary colors

The following is an example of the return values of different color schemes based on [UIColor seafoamColor] colors:

ColorSchemeAnalagous

ColorSchemeMonochromatic

ColorSchemeTriad

ColorSchemeComplementary