How to set RGB color value for Section header - IOS

Question

I have tried with following code for my header view. Its not worked. How to set color other than default color values.

[header_view setBackgroundColor:[UIColor colorWithRed:10. green:0 blue:0 alpha:0]];

Answer 1

[header_view setBackgroundColor:[UIColor colorWithRed:10/255.0 green:0/255.0 blue:0/255.0 alpha:1]];

Answer 2

see the UIColor.h header. will be shown below.

+ (UIColor *)blackColor;      // 0.0 white 
+ (UIColor *)darkGrayColor;   // 0.333 white 
+ (UIColor *)lightGrayColor;  // 0.667 white 
+ (UIColor *)whiteColor;      // 1.0 white 
+ (UIColor *)grayColor;       // 0.5 white 
+ (UIColor *)redColor;        // 1.0, 0.0, 0.0 RGB 
+ (UIColor *)greenColor;      // 0.0, 1.0, 0.0 RGB 
+ (UIColor *)blueColor;       // 0.0, 0.0, 1.0 RGB 
+ (UIColor *)cyanColor;       // 0.0, 1.0, 1.0 RGB 
+ (UIColor *)yellowColor;     // 1.0, 1.0, 0.0 RGB 
+ (UIColor *)magentaColor;    // 1.0, 0.0, 1.0 RGB 
+ (UIColor *)orangeColor;     // 1.0, 0.5, 0.0 RGB 
+ (UIColor *)purpleColor;     // 0.5, 0.0, 0.5 RGB 
+ (UIColor *)brownColor;      // 0.6, 0.4, 0.2 RGB 
+ (UIColor *)clearColor;      // 0.0 white, 0.0 alpha 

as the above color is same following code.

black:       [UIColor colorWithWhite:0.0f alpha:1.0f];
darkGray:    [UIColor colorWithWhite:0.333f alpha:1.0f];
lightGray:   [UIColor colorWithWhite:0.667f alpha:1.0f];
white:       [UIColor colorWithWhite:1.0f alpha:1.0f];
gray:        [UIColor colorWithWhite:0.5f alpha:1.0f];
red:         [UIColor colorWithRed:255/255.0f green:0/255.0f blue:0/255.0f alpha:1.0f];
green:       [UIColor colorWithRed:0/255.0f green:255/255.0f blue:0/255.0f alpha:1.0f];
blue:        [UIColor colorWithRed:0/255.0f green:0/255.0f blue:255/255.0f alpha:1.0f];
.
.
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if you want how to color rgb value apply to UIColor. see the below post

you want color found wikipedia or else site.

r, g, b values ​​are apply as follows.

[UIColor colorWithRed:158/255.0f green:253/255.0f blue:56/255.0f alpha:1.0f];