Changing the color of placeholder text in MUI 5 TextField

Looking to customize the text color and placeholder text color in my MUI TextField component to be green

https://i.sstatic.net/NZmsi.png

The documentation doesn't provide clear instructions, so I attempted a solution that didn't work:

<TextField
        multiline
        rows={3}
        id="outlined-basic"
        placeholder="My placeholder"
        variant="outlined"
        sx={{
          "& .MuiInputBase-root MuiOutlinedInput-root": {
            color: "green"
          },
          "& .MuiInputBase-root MuiOutlinedInput-root ::placeholder": {
            color: "green"
          }
        }}
      />

Any suggestions on how to resolve this issue? Here is the code

Answer №1

For the newest version of MUI v5, you can achieve the desired effect with this simple code:

  <Textfield sx={{
           input: {
     "&::placeholder": {
          opacity: 1
        }}
    }} />

Answer №2

My personal method for verifying the accuracy of my selector:

  1. First, I copy this:
    & .MuiInputBase-root MuiOutlinedInput-root
  2. Next step is to open the inspect element tool
  3. I then use ctrl + f in the inspect elements panel to conduct a search
  4. After that, I paste the copied selector

Through this process, it becomes apparent that the selector is incorrect. The missing class selector . should be added before MuiOutlinedInput-root, like so:

& .MuiInputBase-root.MuiOutlinedInput-root

In addition, the class MuiOutlinedInput-root is not within the children, but rather in the same element

The correct selector is:

& .MuiInputBase-root.MuiOutlinedInput-root ::placeholder

An even simpler version would be: & input::placeholder

Answer №3

Your class names have been entered incorrectly

"& .MuiInputBase-root MuiOutlinedInput-root ::placeholder"
// as opposed to 
"& .MuiInputBase-root.MuiOutlinedInput-root ::placeholder"

To style the outline, you can utilize

"& .MuiOutlinedInput-notchedOutline"

sx={{
  "& .MuiOutlinedInput-notchedOutline": {
    borderColor: "blue"
  },
  "& .MuiInputBase-root.MuiOutlinedInput-root ::placeholder": {
    color: "blue"
  }
}}

Answer №4

To access the text area, utilize the sx function in this manner:

sx={{
      '& > div > textarea':{
        color: "background.default",
      },
    }}

It successfully worked for me, so hopefully it proves useful to you as well.

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