I receive text from wife that’s black and white, text I send her are blue, is location disabled?

The text that you receive is always black and white. When you send a text it is Blue if the receiver is using iMessage or Green if it was sent as SMS. Sometimes even when the receiver uses iMessage the text you send them will be green if either of you currently do not have a data connection. In this case it will be sent as SMS, which is why it is green.

iMessage (Blue) -

• iPhone to iPhone: requires internet (Either over WiFi or Cellular Service) as it is sent over internet protocol. Needs Activation on your device.
• iPhone to Android: Not available

SMS/MMS (Green) -

• iPhone to Android: does not require any internet it is sent over cellular voice protocol. Needs to be enabled by your Carrier for the SIM used by you.
• iPhone to iPhone: When iMessage is not activated or the device is not connected to the internet either over cellular or WiFi
• You need to have an SMS/MMS plan enabled by your carrier for the SIM/eSIM that you use on your device. Apple Inc does not provide SMS/MMS services.

It will turn from Blue to Green if you have enabled "Send as SMS" and whenever your iPhone is not connected to the internet it is sent as SMS (green) to all iPhone users.

That's normal

Black and white indicates you both are using the same Apple ID.

SravanKrA wrote:

Black and white indicates you both are using the same Apple ID.

No, it doesn't.