코드 : 

function all_values(obj) {
    var keys = _keys(obj);
    var length = keys.length;
    var values = Array(length);
    for (var i = 0; i < length; i++) {
      values[i] = obj[keys[i]];
    }
    return values;
  }
function _keys(obj) 
 {
    if (!isObject(obj)) return [];
    if (Object.keys) return Object.keys(obj);
    var keys = [];
    for (var key in obj) if (_.has(obj, key)) keys.push(key);
    return keys;
  }
function isObject(obj)   
{  
    var type = typeof obj;  
    return type === 'function' || type === 'object' && !!obj;  
  } 
console.log(all_values({red: "#FF0000", green: "#00FF00", white: "#FFFFFF"}));

결과 :

["#FF0000", "#00FF00", "#FFFFFF"]