Color.toWeb & Color.toHexString

David Grieve david.grieve at
Mon Jul 23 06:32:06 PDT 2012

Alpha isn't standard in a hex color, but the JavaFX CSS parser will parse #rgba or #rrggbbaa 

On Jul 17, 2012, at 4:56 AM, Pavel Safrata wrote:

> On 17.7.2012 6:11, Jim Graham wrote:
>> I had similar questions to Rich, but I had one additional question:
>> On 7/10/2012 7:50 AM, Pavel Safrata wrote:
>>> public String toHexString()
>>> This method will return a string rrggbb without the leading hash. It
>>> will ignore opacity and will round the values to the nearest color that
>>> can be represented with such string. An example of use is displaying a
>>> web-based color value in a color picker.
>> Why ignore opacity?
> This one is disputable. I based it on the mentioned use-case where you edit the color in a color picker and I've never seen an application where opacity would be part of that field. Also AFAIK expressing opacity as 256-based value is not a common thing at all - for instance it wouldn't be parsed by any CSS engine, would it? But I'm not sure this justifies for ignoring the opacity, maybe we should produce the string expressing the color as close as possible.
> Thanks,
> Pavel
>>            ...jim

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