SQLSTATE[22032]:: 3140 Invalid JSON text: "Invalid value." Json input field?

I have 2 fields:
<div class="form-group">
 Color:<input type="text" name="color" class="form-control" value="{{ old('color') }}">
</div>
<div class="form-group">
 Tags:<input type="text" name="tags" class="form-control" value="{{ old('tags') }}">
</div>

In the Data Base they are marked as type - json .
When you add trying to separate them with a comma or like this [qwe,asd] / ['qwe', 'asd']/ 'qwe', 'asd'.
Error:
SQLSTATE[22032]: <<unknown error>>: 3140 Invalid JSON text: "Invalid value." at position 0 in value for column 'products.color'....</unknown>
July 2nd 19 at 18:17
0 answer

Find more questions by tags JSONSQLMySQLHTMLPHP