# Color sender

> Send color data via personalized URLs for device control and web page interaction. (iPhone/iPad app by Jean-Francois Pautex.)

- Source: https://appshunter.io/ios/app/color-sender/id570765725 (this page in markdown: same URL + `.md`)
- Developer: [Jean-Francois Pautex](https://appshunter.io/developer/286566990)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 12.0 · 3 MB
- Languages: American English, French (France)
- Released: 2012-11-11
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/color-sender/id570765725/reviews.md

## What is Color sender?

Color sender lets you send a color after a touch inside the color wheel with your personal URL you specify it in setting.
Use this application for color setting of some RGB lamp and on/off function or setting something at web pages.

You can check this application with direct background color setting of html frame at web location : http://pautex.fr/colorsender

First application screen shows available inputs as a list, you can edit list very classically, add or delete. An entry include a name and destination URL.

Destination URL must be edited before use with your own server. You include maximum 5 tags "%d" or "%02X" in the URL and set each parameters with some names for your convenience. 
You will first  provide a validation parameter (value 0 or 1) for stop button, and 3 parameters as  red, green and blue color components, last param is slider value in 0..100 range.

URL form is : 
    - http://IP/xxx.php?s=%d&rR=%d&G=%d&B=%d&Y=%d (decimal values)
    - http://IP/xxx.php?s=%d&color=%02X%02X%02X (hexa values) - add # if needed.
Color coding is 1 byte, numerical values are between decimal 0 and 255 (0xFF)and 0..100 for last value (slider).

Each hit on the wheel or onto the brightness slider make a call with the specified URL after parameters replacement and with "1" for the first parameter value.
A hit on the "stop" button set first parameter to "0" all other remind unchanged.

© Pautex JF, Nancy v1.2 - 2012 - 2022

## Key features

- Send color data via personal URL
- Control RGB lamps
- Set web page background colors
- On/Off function for devices
- Customizable URL parameters
- Edit input list (add/delete entries)

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/color-sender/id570765725/reviews.md

### 5/5 — I have been searching for this for weeks! Perfect! 5+

*2013-03-31, version 1.0*

I was searching for a color picker iPhone app for weeks to control BlinkMs with Electric Imp. I tried every combination of color, RGB, lamp, http, url, post, etc. Nothing… Finally, color + send did the trick. It is the perfect app for what I need, nothing more and nothing less, down to the return value of the “s” parameter to turn the button red. Thank you Jean-Francois!

## Frequently asked questions about Color sender

### What is Color sender used for?

Color sender allows you to send color data and control signals through personalized URLs. This can be used for setting RGB lamp colors, controlling on/off functions, or modifying web page elements.

### How does Color sender send data?

Data is sent via a user-defined URL. You can include up to five tags like '%d' or '%02X' which are replaced with validation, red, green, blue color components, or slider values.

### Can Color sender control my smart lights?

If your RGB lamps can be controlled via a web URL with specific parameters for color and on/off states, Color sender can likely be configured to control them.

### What kind of URLs can I set up?

You can set up URLs that accept decimal values (e.g., http://IP/xxx.php?s=%d&rR=%d&G=%d&B=%d&Y=%d) or hexadecimal values (e.g., http://IP/xxx.php?s=%d&color=%02X%02X%02X).

### Is Color sender available on Android?

Based on the provided data, Color sender is available on iPhone and iPad. Support for Android devices is not specified.

### How often is Color sender updated?

The latest version, 1.2, was released on August 18, 2022. The app was initially released on November 11, 2012, indicating infrequent but stable updates.

### What is the age rating for Color sender?

Color sender has an age rating of 4+, making it suitable for a wide range of users.

### Does Color sender have ads?

No, the provided data indicates that Color sender does not contain advertisements.

## Version history (last 3 releases)

### 1.2 — 2022-08-18

Adjusted for iOS 13 and more and new iPhone screen size.
Add a new parameter slider value, can easy used for RGBW lamp.

### 1.1 — 2017-03-03

This app has been updated by Apple to display the Apple Watch app icon.

Make for iOS10
Fix some bugs with previous version
Adjust with various screen sizes

### 1.0 — 2012-11-09

No release notes.

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## More apps by Jean-Francois Pautex

- [Carte](https://appshunter.io/ios/app/carte/id286566987)
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- [PLCLink](https://appshunter.io/ios/app/plclink/id413051647)

All apps by Jean-Francois Pautex: https://appshunter.io/developer/286566990

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*