Question: How can I change the color of the using CSS? 

Saw on another post that if I use the following code, it would change it, but I had no luck with it so far. 

```
.mat-radio-button.mat-accent .mat-radio-ripple .mat-ripple-element {
    background-color:rgb(255, 37, 37);
  }

.mat-radio-button.mat-accent.mat-radio-checked .mat-radio-outer-circle {
    border-color: rgb(66, 134, 244);
}

.mat-radio-button.mat-accent .mat-radio-inner-circle {
    background-color: rgb(66, 134, 244);
}

```

Also, how could I use the rest of the color hues? 

```
<mat-radio-button color="accent">Hello, World</mat-radio-button>

```

Let's say that I want to use from the Accent color, the hue of 300 or A100, how would I go about to doing that? 

I've tried using `accent-100` and `accent hue-100` but, it doesn't work

Answer: 
None of the above worked for me. But this one worked i.e put color="primary" on mat -radio button. ie

```
<mat-radio-button color="primary" value=1>Active</<mat-radio-button>. 

```

See example below

<https://stackblitz.com/edit/angular-material2-issue-ethbcx>
The solution that worked for me was this, add this to your:

**style.css/style.scss**

```
.mat-radio-button.mat-accent .mat-radio-ripple .mat-ripple-element {
    background-color:  rgb(22, 92, 125) !important;
}

.mat-radio-button.mat-accent .mat-radio-inner-circle {
    background-color:  rgb(22, 92, 125) !important;
    z-index: 3;
}

.mat-radio-button .mat-radio-outer-circle {
    border-color:  rgb(22, 92, 125) !important; // Override material
    z-index: 3;
}

```