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Show HN: My first native iOS app – Cone, a real time color picker

coneapp.io

11–20 of 164 posts

Re: Show HN: My first native iOS app – Cone, a real time color picker

#11

I really liked the landing page, especially the outline of the iPhone with an example of the app running inside of it.

The landing page was really cool. A minor suggestion I have: could the animation be slowed down a bit? I was scanning the page and the cursor moving around was a bit annoying.

I think that the way the application works will still be clear if the animation plays at half of its current speed.

Re: Show HN: My first native iOS app – Cone, a real time color picker

#14

What a great idea. I am renovating my house right now and I have to buy some paint for partially painting a facade. I could use such an app to be able to choose the paint color, in the store, as close as possible to the original one. Do you know of any such app for Android?

Lots of DIY stores will custom-mix colour matched paint if you take a chip of it in.

Re: Show HN: My first native iOS app – Cone, a real time color picker

#17

Question here, how do you put a name on the hex? Do you have a database that map each hex code to "limelight", "grey asparagus", etc ?

At the very bottom of the page you can see the list used: http://people.csail.mit.edu/jaffer/Color/resenecolours.txt

Re: Show HN: My first native iOS app – Cone, a real time color picker

#18
post #10

Is there anything to covert hex codes to paint colors? Live, real word paint on the wall. That would be neat. I haven't looked at a paint can in a while, maybe it's as simple as rgb?

It's definitely not as simple as RGB. Displays use an additive color model (you start from black and add more light), whereas paints use a subtractive color model (you start from white and add pigment).

The standard model for subtractive color is CMYK -- cyan, magenta, yellow and black. Calibrating RGB displays to offer a reasonable preview of CMYK color is quite tricky due to the completely different color space and dynamics.

Wall paints are an additional step removed because you can't buy them in CMYK, and the vendors don't provide a mapping from their private color names into a standard CMYK space.

Re: Show HN: My first native iOS app – Cone, a real time color picker

#19

Question here, how do you put a name on the hex? Do you have a database that map each hex code to "limelight", "grey asparagus", etc ?

How else would it be done?

Using a RNN that makes up plausible names based on a training set of actual colors.

I kinda hope that was a genuinely curious question and not an arrogant rhetoric one.

Re: Show HN: My first native iOS app – Cone, a real time color picker

#20

Earlier quoted context omitted.

How else would it be done?

Using a RNN that makes up plausible names based on a training set of actual colors. I kinda hope that was a genuinely curious question and not an arrogant rhetoric one.

Why RNN? I would probably settle for a nearest neighbour in Lab color space.
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