How to style material-ui textfield

I have been trying to work out how to style a material-ui TextField component.

<TextField
    id="email"
    label="Email"
    className={classes.textField}
    value={this.state.form_email}
    onChange={this.handle_change('form_email')}
    margin="normal"
/>

My classes are created as follows:

const styles = theme => ({
    textField: {
        width: '90%',
        marginLeft: 'auto',
        marginRight: 'auto',
        color: 'white',
        paddingBottom: 0,
        marginTop: 0,
        fontWeight: 500
    },
});

My problem is that I can not seem to get the colour of the text field to change to white. I seem to be able to apply styling to the overall text field (because the width styling works etc)... but I think the problem is that I am not applying the styles further down the chain and into the actual input.

I have tried to look at the other answers dealing with passing inputProps but have had no success.

Have tried everything to the best of my ability but think I need to ask if anyone knows what I am doing wrong.

>What it currently looks like

You need to add the InputProps property to the TextField.

const styles = theme => ({
    textField: {
        width: '90%',
        marginLeft: 'auto',
        marginRight: 'auto',            
        paddingBottom: 0,
        marginTop: 0,
        fontWeight: 500
    },
    input: {
        color: 'white'
    }
});

JSX:

<TextField
    id="email"
    label="Email"
    className={classes.textField}
    value={this.state.form_email}
    onChange={this.handle_change('form_email')}
    margin="normal"
    InputProps={{
        className: classes.input,
    }}
/>

As an aside, you can also style the label or use an override as described here.

All the answers here shows how to style things with InputProps or inputProps, but no one explained why, and how it works. And no one explained whats the difference between inputProps and InputProps

<TextField    
    variant="outlined"
    // inputProps are used to pass attributes native to the underlying 
    // HTML input element, e.g. name, id, style.
    inputProps={{
      style: { textAlign: 'center' },
    }

    // InputProps (capital I) passes props to the wrapper Material 
    // component. Can be  one of the following: Input, FilledInput, 
    // OutlinedInput. You can pass here anything that the underlying
    // Material component uses: error, value, onChange, and classes.
    InputProps={{
       // Usually you don't need className, the `classes` object will
       // be sufficient. However, you can also use it and this will
       // add your class to the div of the InputBase.
       className: styles.slider_filter_input, 
       classes: {
          root: classes.root
          focused: classes.focused
          // The list of keys you pass here depend on your variant
          // If for example you used variant="outlined", then you need
          // to check the CSS API of the OutlinedInput.
       }
    }}
/>

Here is a working codesandbox showing the ideas above.

This is a solution with inline styles:

<TextField
    style={{
        backgroundColor: "blue"
    }}
    InputProps={{
        style: {
            color: "red"
        }
    }}
/>

I'd suggest keeping your style within a theme.

const theme = createMuiTheme({
  overrides: {
    MuiInputBase: {
      input: {
        background: "#fff",
      },
    },
  },
});

It really depends on what exactly are you trying to change.

The documentation has a bunch of examples on custom TextFields, take a look at them here:

https://material-ui.com/demos/text-fields/#customized-inputs

More information about customization can be found here:

https://material-ui.com/customization/overrides/

and

https://material-ui.com/customization/themes/

Have you tried using !important for the color changes? I had the same problem when I tried to set a default color for the border of an outlined TextField

Take a look at this: https://stackblitz.com/edit/material-ui-custom-outline-color

Try using the inputStyle prop on TextField. From the docs...

> inputStyle (object) - Override the inline-styles of the TextField's input > element. When multiLine is false: define the style of the input > element. When multiLine is true: define the style of the container of > the textarea.

<TextField inputStyle={{ backgroundColor: 'red' }} />

You cann pass styles to any of the children elements in the hierarchy:

TextField > Input > input (HTML element)

Notice the uper or lower case in InputProps vs. inputProps

// pass styles (or props) to the Input component 
<TextField InputProps={{className: classes.input}} />

// pass styles (or props) to the inner input element 
<TextField inputProps={{className: classes.input}} />

As of MUI V5, you can use the sx prop to change style settings. You still need to use inputProps to pass down those props to the input field. You could consider doing it like this:

              <TextField
                sx={{ marginTop: 10 }}
                inputProps={{ sx: {color: '#fff'} }}  
              />

The SX prop in MUI V5

Try using the FilledInput component instead of TextField. Then you can use simple inline styling like this:

style={{color: 'white' }}

This also will lighten the placeholder text... hooray.

<TextField
          color="whitish"
          label="Enter Your Name"
          type="Text"
          InputLabelProps={{
            style: { color: "white" },
          }}
          sx={{
            ".css-x2l1vy-MuiInputBase-root-MuiOutlinedInput-root": {
              color: "white",
            },
          }}
          InputProps={{
            sx: {
              ".css-1d3z3hw-MuiOutlinedInput-notchedOutline": {
                border: "2px solid white",
              },
              "&:hover": {
                ".css-1d3z3hw-MuiOutlinedInput-notchedOutline": {
                  border: "2px solid white",
                },
              },
            },
          }}
          size="medium"
          variant="outlined"
          fullWidth
          value={name}
          onChange={(e) => {
            setName(e.target.value);
          }}
        />

Customize on_hover,color,border TextField