inverted-colors

/* Keyword value */
@media (inverted-colors: inverted) {
  /* styles to apply if inversion of colors is detected */
}

<p>
  If color inversion is detected, this text will appear blue on white (the
  inverse of yellow on black) along with a line over the text. If no color
  inversion is happening, the text will appear red on light gray without the
  line over the text.
</p>
<p>
  If the text is gray and no overline is present, it means your browser doesn't
  support the
  <code>inverted-colors</code> media feature.
</p>

p {
  color: gray;
}

@media (inverted-colors: inverted) {
  p {
    background: black;
    color: yellow;
    text-decoration: overline;
  }
}

@media (inverted-colors: none) {
  p {
    background: #eeeeee;
    color: red;
  }
}