Parse a type-level string containing a named color from a basic palette or a hexadecimal representation and convert it into three bytes representing red, green, and blue channels

• For convenience, a 255 alpha channel is interpreted as a solid color without an alpha channel:

>>> webColor @"123" (,,)
(17,34,51)

>>> webColor @"123f" (,,)
(17,34,51)

• Other alpha channel values result in a compile-time error:

>>> webColor @"123d" (,,)
Unexpected alpha channel! RGB color expected

• Named colors are always considered RGB-only:

>>> webColor @"red" (,,)
(255,0,0)

Parse a type-level string containing a named color from a basic palette or a hexadecimal representation and convert it into four bytes representing red, green, blue, and alpha channels

• An absent alpha channel get converted into the 255 value:

>>> webColorAlpha @"123" (,,,)
(17,34,51,255)

>>> webColorAlpha @"123f" (,,,)
(17,34,51,255)

• Named colors are always considered RGB-only:

>>> webColorAlpha @"red" (,,,)
(255,0,0,255)

Red, green, and blue color channels in range from 0 to 255

Red, green, blue, and alpha color channels in range from 0 to 255

Parse a string containing a named color from a basic palette or hexadecimal representation without an alpha channel.

• For convenience, a 255 alpha channel is interpreted as a solid color without an alpha channel:

>>> showType @(`ParseWebColor` "123")
'(17, 34, 51)

>>> showType @(`ParseWebColor` "123f")
'(17, 34, 51)

• Other alpha channel values result in a compile-time error:

>>> showType @(`ParseWebColor` "123d")
Unexpected alpha channel! RGB color expected

This family inherits many properties from ParseWebColorMaybeAlpha:

• Named colors are always considered RGB-only:

>>> showType @(`ParseWebColor` "red")
'(255, 0, 0)

• This family automatically handles shortened syntax.
• This family throws a compile-time error when the wrong number of hex characters is supplied

Parse a string containing a named color from a basic palette or a hexadecimal representation with an optional alpha channel.

• This family converts an absence of an alpha channel into the 255 value.

>>> showType @(`ParseWebColorAlpha` "123")
'(17, 34, 51, 255)

This family inherits many properties from ParseWebColorMaybeAlpha:

• Named colors are always considered RGB-only and are handled the same way:

>>> showType @(`ParseWebColorAlpha` "red")
'(255, 0, 0, 255)

• This family automatically handles shortened syntax.
• This family throws a compile-time error when the wrong number of hex characters is supplied

Red, green, blue, and optional alpha color channels in range from 0 to 255

Parse a string containing a named color from a basic palette or hexadecimal representation with an optional alpha channel.

• Named colors are always considered RGB-only:

>>> showType @(`ParseWebColorMaybeAlpha` "red")
'(255, 0, 0, 'Nothing)

>>> showType @(`ParseWebColorMaybeAlpha` "silver")
'(192, 192, 192, 'Nothing)

ParseWebColorMaybeAlpha inherits many properties from ParseHexadecimalColor:

• The difference between a Nothing alpha channel and Just 255 is purely syntactical, and you have to tackle the difference yourself
• This family automatically handles shortened syntax
• This family throws a compile-time error when the wrong number of hex characters is supplied

Please refer to ParseHexadecimalColor for the examples.

Parse a string containing hexadecimal representation of a color with an optional alpha channel.

• This family doesn't handle named colors.
• The difference between a Nothing alpha channel and Just 255 is purely syntactical, and you have to tackle the difference yourself:

>>> showType @(`ParseHexadecimalColor` "fafefb")
'(250, 254, 251, 'Nothing)

>>> showType @(`ParseHexadecimalColor` "fafefbff")
'(250, 254, 251, 'Just 255)

• This family automatically handles shortened syntax:

E.g. #123 is the same as #112233:

>>> showType @(`ParseHexadecimalColor` "123")
'(17, 34, 51, 'Nothing)

>>> showType @(`ParseHexadecimalColor` "112233")
'(17, 34, 51, 'Nothing)

The same applies to #1234 and #11223344:

>>> showType @(`ParseHexadecimalColor` "1234")
'(17, 34, 51, 'Just 68)

>>> showType @(`ParseHexadecimalColor` "11223344")
'(17, 34, 51, 'Just 68)

• This family throws a compile-time error when the wrong number of hex characters is supplied:

>>> showType @(`ParseHexadecimalColor` "1")
Unexpected number of hex codes
expected 3, 4, 6 or 8

>>> showType @(`ParseHexadecimalColor` "1122334455")
Unexpected number of hex codes
expected 3, 4, 6 or 8

Convert a hexadecimal character (0 .. F) into a corresponging number. Case insensitive.