Hi Tazythedog
welcome to the Apple (user-to-user) Community!
Re: "Message colors when sending a text : all the text addresses I have that were blue is now all green".
Wondering if you have tried restarting your iPhone: (Deletes temporary files, re-establishes connections, may update recent setting changes, and often restores order when something is not working as expected.)
If needed: How to: Restart your iPhone - Apple Support
or
Seems you may need to check that your wi-fi and internet connection is working ok.
If needed: Connect to Wi-Fi on your iPhone, iPad, or iPod touch - Apple Support
or:
Troubleshooting: If your iPhone or iPad won't connect to a Wi-Fi network - Apple Support
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Re: "when I send or try to send message to other I phones, the other phone color is green when it should be blue".
Seems SMS & MMS to Android users generally use cellular data (green message bubbles):
More info, if needed: What is the difference between iMessage and SMS/MMS? - Apple Support
To check your cellular settings: See: Use cellular data on your iPhone or iPad - Apple Support
NB: cellular data rates may apply.
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Generally, Messages uses wi-fi to send (blue-bubble) messages to and from Apple users.
NB: If wi-fi is not available messages go by cellular data, if it is turned on.
Go to Settings > Messages, check whether iMessage is on or has accidentally been turned off.
When iMessage is on
You can send an iMessage using a Wi-Fi connection when you don’t have access to mobile service.
The Recently Deleted feature saves deleted messages for up to 30 days.
When iMessage is off
When iMessage is turned off, features like message editing, message unsend and read receipts aren’t available. Messages are sent using SMS/MMS instead.
Above is from: Manage safety settings in Messages - Apple Support
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You can also use Wi-Fi Assist to automatically switch to cellular when you have a poor Wi-Fi connection.
Check if Wi-Fi Assist settings are on or off as you wish. More info: About Wi-Fi Assist - Apple Support
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If more support is needed:
If you want, you can contact Apple Messages Support (online chat / phone / email etc.):
There is a link to Support staff at bottom right on the webpage that opens from the link below.
Messages for iPhone, iPad, Apple Watch, and Mac - Official Apple Support
All the best :-)
