Safe Haskell	Safe
Language	Haskell98

Data.Colour.SRGB

Description

Specifies Colours in accordance with the sRGB standard.

Synopsis

Documentation

This type represents the human preception of colour. The a parameter is a numeric type used internally for the representation.

The Monoid instance allows one to add colours, but beware that adding colours can take you out of gamut. Consider using blend whenever possible.

Instances

ColourOps Colour Source #
Methods over :: Num a => AlphaColour a -> Colour a -> Colour a Source # darken :: Num a => a -> Colour a -> Colour a Source #
AffineSpace Colour Source #
Methods affineCombo :: Num a => [(a, Colour a)] -> Colour a -> Colour a Source #
Eq a => Eq (Colour a) Source #
Methods (==) :: Colour a -> Colour a -> Bool # (/=) :: Colour a -> Colour a -> Bool #
Num a => Semigroup (Colour a) Source #
Methods (<>) :: Colour a -> Colour a -> Colour a # sconcat :: NonEmpty (Colour a) -> Colour a # stimes :: Integral b => b -> Colour a -> Colour a #
Num a => Monoid (Colour a) Source #
Methods mempty :: Colour a # mappend :: Colour a -> Colour a -> Colour a # mconcat :: [Colour a] -> Colour a #

An RGB triple for an unspecified colour space.

Constructors

RGB
Fields channelRed :: !a channelGreen :: !a channelBlue :: !a

Instances

Functor RGB Source #
Methods fmap :: (a -> b) -> RGB a -> RGB b # (<$) :: a -> RGB b -> RGB a #
Applicative RGB Source #
Methods pure :: a -> RGB a # (<>) :: RGB (a -> b) -> RGB a -> RGB b # (>) :: RGB a -> RGB b -> RGB b # (<*) :: RGB a -> RGB b -> RGB a #
Eq a => Eq (RGB a) Source #
Methods (==) :: RGB a -> RGB a -> Bool # (/=) :: RGB a -> RGB a -> Bool #
Read a => Read (RGB a) Source #
Methods readsPrec :: Int -> ReadS (RGB a) # readList :: ReadS [RGB a] # readPrec :: ReadPrec (RGB a) # readListPrec :: ReadPrec [RGB a] #
Show a => Show (RGB a) Source #
Methods showsPrec :: Int -> RGB a -> ShowS # show :: RGB a -> String # showList :: [RGB a] -> ShowS #

Construct a colour from a 24-bit (three 8-bit words) sRGB specification.

Construct a colour from an sRGB specification. Input components are expected to be in the range [0..maxBound].

sRGB :: (Ord b, Floating b) => b -> b -> b -> Colour b Source #

Construct a colour from an sRGB specification. Input components are expected to be in the range [0..1].

Return the approximate 24-bit sRGB colour components as three 8-bit components. Out of range values are clamped.

Return the approximate sRGB colour components in the range [0..maxBound]. Out of range values are clamped.

Return the sRGB colour components in the range [0..1].

Show a colour in hexadecimal form, e.g. "#00aaff"

Show a colour in hexadecimal form, e.g. "#00aaff"

Read a colour in hexadecimal form, e.g. "#00aaff" or "00aaff"

Read a colour in hexadecimal form, e.g. "#00aaff" or "00aaff"

The sRGB colour space