Show HN: Color Picker for iOS and Android developers | Hacker News Reader

Show HN: Color Picker for iOS and Android developers

colorsforcoders.com

38 pointssdvz12 comments

I don't know what this is supposed to do or how it's useful but it flickers like crazy on my iPhone6+

https://www.youtube.com/watch?v=6owWcbPEcbA

It said iOS/Android so I checked it from iOS. The headline on HN says "Color Picker" but there are 16 million colors, what's special about these 105 colors? How do I pick other colors? There's no readme or about or what's this. What's the point? Do I give it a list of colors to show a user? Are these 105 colors special?

Thanks for letting me know about the flickering. The point of ColorsForCoders is to provide a convenient way for iOS and Android developers to select and integrate colors in their apps. Code for a particular color is copied to the clipboard when clicked. It is meant to be used on a desktop during iOS/Android development.

Nice but HSLa would be a nice addition. I think we really should encourage the use of this format now that it is supported.

The ability to shift saturation and brightness without impacting hue is really useful once it saves your butt a couple times.

Thanks for the feedback. I'll add HSLa as an option.

HSL and the likes are based on a simple cylindrical transformation of RGB. I would argue that we usually want perceptual uniformity, so I recommend cylindrical versions of CIELAB instead; just replace a* and b* with C* and h* , where a* = C* cos( h* ) and b* = C* sin( h* ).

Now that all Apple devices and computers can display DCI-P3 [1][2][3], you should expand this to support/include colors from that wider color gamut, and in Extended sRGB and 16-bit formats, especially since the preset examples start with red. :)

[1] https://en.wikipedia.org/wiki/DCI-P3

[2] https://webkit.org/blog/6682/improving-color-on-the-web/

[3] http://www.astramael.com

There should be a space between an argument label and the parameters being passed. UIColor(red: 0.5 ... For example.

Thanks. Fixed.

Similar to https://color.hailpixel.com/ which is pretty useful too.

This is a really good native color picker http://sipapp.io

Seems to have no ability to scroll with the keyboard. That would be a major impediment to me using it.

Is there anything special about that set of colors?

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