colours– Color library with 100 predefined colors and methods

Brief introduction

The colours– color library, which contains 100 predefined colors and methods, simplifies related development efforts.

Project home: Colours

Latest example: Click to download

Quick StartInstallationInstallation via Cocoapods

Pod ' Colours '

Manual Installation

Drag Colours.h and colours.m into your project and introduce the header files where you need them:

#import "Colours.h"

UsePalette, a set of pre-defined colors

Click here to view: 100 pre-defined colors

Use pre-defined colors

Colours has more than 100 colors pre-defined and is used in the same way that iOS systems are predefined:

[Uicolor Indigocolor]; Indigocolor is a pre-defined color of colours.

Color-dependent tool methodshexadecimal strings and colors convert to each other

Uicolor *newcolor = [Uicolor colorfromhexstring:@ "#f587e4"]; NSString *hexstring = [Newcolor hexstring];

Conversion of RGBA to color.Conversion between RGBA arrays and colors

Nsarray *colorarray = [[Uicolor Seafoamcolor] The rgbaarray];//array stores four NSNumber objects representing the four values of RGBA, with a range of 0-1. Uicolor *newcolor = [Uicolor Colorfromrgbaarray:colorarray];

Conversion between RGBA dictionaries and colors

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 get a single value: NSNumber *r = Colordict[kcoloursrgba_r];

HSBA Array and color conversion

Nsarray *colorarray = [[Uicolor Seafoamcolor] hsbaarray];//array stores four NSNumber, respectively representing H (Hue), S (color saturation), B (luminance), a (transparency) value. Nsdictionary *colordict = [[Uicolor seafoamcolor] hsbadictionary];

HSBA and color Conversion

Like Rgba and color conversion, the predefined keys are:

• kColoursHSBA_H  色调

• kColoursHSBA_S  色饱和度

• kColoursHSBA_B  色亮度

• kColoursHSBA_A  透明度

Nsarray *colorarray = [[Uicolor seafoamcolor] hsbaarray]; Nsdictionary *colordict = [[Uicolor seafoamcolor] hsbadictionary]; Uicolor *newcolor1 = [Uicolor Colorfromhsbaarray:colorarray]; Uicolor *newcolor2 = [Uicolor colorfromhsbadictionary:colordictionary];

CIELAB and color conversion

Like Rgba and color conversion, the predefined keys are:

• 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];

The conversion between CMYK and color

Similar to the conversion usages of RGBA and color, the predefined keys are:

• kColoursCMYK_C 青

• kColoursCMYK_M 品红

• kColoursCMYK_Y 黄

• kColoursCMYK_K 黑

Nsarray *colorarray = [[Uicolor seafoamcolor] cmykarray]; Nsdictionary *colordict = [[Uicolor seafoamcolor] cmykdictionary]; Uicolor *newcolor1 = [Uicolor Colorfromcmykarray:colorarray]; Uicolor *newcolor2 = [Uicolor colorfromcmykdictionary:colordictionary];

Get all color information

The Colorcomponents method returns a dictionary that contains all the predefined keys for Rgba, HSBA, Cie_lab, and CMYK:

Nsdictionary *components = [Somecolor colorcomponents]; CGFloat H = components[kcolourshsba_h]; CGFloat L = components[kcolourscie_l];

If you want only one color-related 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 Lighten/Darken

Value range 0->1 Uicolor *lightercolor = [[Uicolor seafoamcolor] lighten:0.25f]; Uicolor *darkercolor = [[Uicolor seafoamcolor] darken:0.25f];

Get the contrast color

Depending on the given color, it can automatically form a contrasting color of black or white. Uicolor *contrastingcolor = [[Uicolor seafoamcolor] blackorwhitecontrastingcolor];

Get complementary colors

Returns the complementary color of a given color: tonal change, hue and saturation unchanged. Uicolor *complementary = [[Uicolor seafoamcolor] complementarycolor];

Get the difference between two colors

Here the difference, the comprehensive consideration of the human senses, mathematical statistics algorithm, etc., is not the general RGB difference. CGFloat distance = [Somecolor distancefromcolor:someothercolor type:colordistancecie94]; BOOL isnoticablysimilar = distance < threshold;

produce a variety of color schemes based on one color

Using the Colorschemeoftype method, you can create four new beautiful and appropriate colors based on one color, and return all five colors as an array. 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 color

The following is an example of the return value of a different color scheme based on the [Uicolor Seafoamcolor] Color:

Colorschemeanalagous

Colorschememonochromatic

Colorschemetriad

Colorschemecomplementary

colours– Color library with 100 predefined colors and methods