ng2-completer get selectedObject

How can I get originalObject in selected event?

for example in this code I want use value field but search in colors!

protected searchData = [
{ color: 'red', value: '#f00' },
{ color: 'green', value: '#0f0' },
{ color: 'blue', value: '#00f' },
{ color: 'cyan', value: '#0ff' },
{ color: 'magenta', value: '#f0f' },
{ color: 'yellow', value: '#ff0' },
{ color: 'black', value: '#0' }
];

constructor(private completerService: CompleterService) {
  this.dataService = completerService.local(this.searchData, 'color','color');
}

and this is my template:

<ng2-completer [(ngModel)]="searchStr" [datasource]="dataService" 
[minSearchLength]="0">

Thanks.