Custom Attribute frontend display not working in Magento 2.1

## Steps to reproduce
1. After assigning the custom attribute in the admin side.
2. I have get the data and display it in frontend product view page.
3. In magento 2.0.x getAttributeText('color') is working fine. But Magento 2.1 it's not working. 
## Expected result
1. I need to display the chosen value. for ex: Color: Blue
## Actual result
1. It shows empty result.
