User:Isaacl/Colour convert/doc

Usage
This template can convert to and from the following display formats:
 * sRGB floating point: xx%, yy%, zz% where each value is between 0 and 100%
 * sRGB 24-bit: XX, YY, ZZ where each value is between 0 and 255
 * sRGB 24-bit hex: #XX, #YY, #ZZ where each value is a hex number between 00 and FF
 * sRGB 24-bit hex string: #XXYYZZ where XX, YY, and ZZ are hex numbers between 00 and FF
 * W3C colour names: a name as defined in W3C CSS Color Module Level 3

The starting display format is specified using the "from" parameter, and the final display format is specified using the "to" parameter, using the following values:

The template will automatically deduce if the starting display format is sRGB floating point, sRGB 24-bit, sRGB 24-bit hex, or sRGB 24-bit hex string, if the format shown in the examples is followed.