Choku.Color

data Color

Constructors

• RGB { b :: Int, g :: Int, r :: Int }

  RGB digits. Each channel has the 8-bit range 0 to 255.

• Hex String

  Hex number representation of the RGB color model, for example #ED49DF.

• ANSI256 Int

  ANSI 256 colors, ranging from 0 to 255.

Instances

• Eq Color
• Show Color

mkRGB :: Int -> Int -> Int -> Maybe Color

Safe constructor to make a Color from RGB values.

Returns Nothing with out-of-bounds inputs.

mkHex :: String -> Maybe Color

Safe constructor to make a Color from Hex string.

Returns Nothing with invalid Hex string. Prefix # is not mandatory. Hex digits of either length 6 (e.g., #0a0b0c) or 3 (e.g., #ABC) are accepted.

mkANSI256 :: Int -> Maybe Color

Safe constructor to make a Color from ANSI256 integer value between 0 and 255.

Returns Nothing with out-of-bounds input.