private com.google.protobuf.SingleFieldBuilderV3<
            com.google.type.Color, com.google.type.Color.Builder, com.google.type.ColorOrBuilder>
        getColorFieldBuilder() {
      if (colorBuilder_ == null) {
        colorBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.type.Color,
                com.google.type.Color.Builder,
                com.google.type.ColorOrBuilder>(getColor(), getParentForChildren(), isClean());
        color_ = null;
      }
      return colorBuilder_;
    }
<pre>
RGB components of the color.
</pre>

<code>.google.type.Color color = 1;</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/ColorInfo.java