diff --git a/src/components/color-picker/saturation.vue b/src/components/color-picker/saturation.vue
index 0b08b80..a6e11f4 100644
--- a/src/components/color-picker/saturation.vue
+++ b/src/components/color-picker/saturation.vue
@@ -14,7 +14,7 @@
     </div>
 </template>
 <script>
-    import throttle from '../../utils/throttle';
+    import throttle from 'lodash.throttle';
 
     export default {
         name: 'Saturation',
diff --git a/src/utils/throttle.js b/src/utils/throttle.js
deleted file mode 100644
index 71b7fe7..0000000
--- a/src/utils/throttle.js
+++ /dev/null
@@ -1,439 +0,0 @@
-/**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-
-/** Used as the `TypeError` message for "Functions" methods. */
-var FUNC_ERROR_TEXT = 'Expected a function';
-
-/** Used as references for various `Number` constants. */
-var NAN = 0 / 0;
-
-/** `Object#toString` result references. */
-var symbolTag = '[object Symbol]';
-
-/** Used to match leading and trailing whitespace. */
-var reTrim = /^\s+|\s+$/g;
-
-/** Used to detect bad signed hexadecimal string values. */
-var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
-
-/** Used to detect binary string values. */
-var reIsBinary = /^0b[01]+$/i;
-
-/** Used to detect octal string values. */
-var reIsOctal = /^0o[0-7]+$/i;
-
-/** Built-in method references without a dependency on `root`. */
-var freeParseInt = parseInt;
-
-/** Detect free variable `global` from Node.js. */
-var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
-
-/** Detect free variable `self`. */
-var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
-
-/** Used as a reference to the global object. */
-var root = freeGlobal || freeSelf || Function('return this')();
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeMax = Math.max,
-    nativeMin = Math.min;
-
-/**
- * Gets the timestamp of the number of milliseconds that have elapsed since
- * the Unix epoch (1 January 1970 00:00:00 UTC).
- *
- * @static
- * @memberOf _
- * @since 2.4.0
- * @category Date
- * @returns {number} Returns the timestamp.
- * @example
- *
- * _.defer(function(stamp) {
- *   console.log(_.now() - stamp);
- * }, _.now());
- * // => Logs the number of milliseconds it took for the deferred invocation.
- */
-var now = function() {
-    return root.Date.now();
-};
-
-/**
- * Creates a debounced function that delays invoking `func` until after `wait`
- * milliseconds have elapsed since the last time the debounced function was
- * invoked. The debounced function comes with a `cancel` method to cancel
- * delayed `func` invocations and a `flush` method to immediately invoke them.
- * Provide `options` to indicate whether `func` should be invoked on the
- * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
- * with the last arguments provided to the debounced function. Subsequent
- * calls to the debounced function return the result of the last `func`
- * invocation.
- *
- * **Note:** If `leading` and `trailing` options are `true`, `func` is
- * invoked on the trailing edge of the timeout only if the debounced function
- * is invoked more than once during the `wait` timeout.
- *
- * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
- * until to the next tick, similar to `setTimeout` with a timeout of `0`.
- *
- * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
- * for details over the differences between `_.debounce` and `_.throttle`.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Function
- * @param {Function} func The function to debounce.
- * @param {number} [wait=0] The number of milliseconds to delay.
- * @param {Object} [options={}] The options object.
- * @param {boolean} [options.leading=false]
- *  Specify invoking on the leading edge of the timeout.
- * @param {number} [options.maxWait]
- *  The maximum time `func` is allowed to be delayed before it's invoked.
- * @param {boolean} [options.trailing=true]
- *  Specify invoking on the trailing edge of the timeout.
- * @returns {Function} Returns the new debounced function.
- * @example
- *
- * // Avoid costly calculations while the window size is in flux.
- * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
- *
- * // Invoke `sendMail` when clicked, debouncing subsequent calls.
- * jQuery(element).on('click', _.debounce(sendMail, 300, {
- *   'leading': true,
- *   'trailing': false
- * }));
- *
- * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
- * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
- * var source = new EventSource('/stream');
- * jQuery(source).on('message', debounced);
- *
- * // Cancel the trailing debounced invocation.
- * jQuery(window).on('popstate', debounced.cancel);
- */
-function debounce(func, wait, options) {
-    var lastArgs,
-        lastThis,
-        maxWait,
-        result,
-        timerId,
-        lastCallTime,
-        lastInvokeTime = 0,
-        leading = false,
-        maxing = false,
-        trailing = true;
-
-    if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-    }
-    wait = toNumber(wait) || 0;
-    if (isObject(options)) {
-        leading = !!options.leading;
-        maxing = 'maxWait' in options;
-        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
-        trailing = 'trailing' in options ? !!options.trailing : trailing;
-    }
-
-    function invokeFunc(time) {
-        var args = lastArgs,
-            thisArg = lastThis;
-
-        lastArgs = lastThis = undefined;
-        lastInvokeTime = time;
-        result = func.apply(thisArg, args);
-        return result;
-    }
-
-    function leadingEdge(time) {
-        // Reset any `maxWait` timer.
-        lastInvokeTime = time;
-        // Start the timer for the trailing edge.
-        timerId = setTimeout(timerExpired, wait);
-        // Invoke the leading edge.
-        return leading ? invokeFunc(time) : result;
-    }
-
-    function remainingWait(time) {
-        var timeSinceLastCall = time - lastCallTime,
-            timeSinceLastInvoke = time - lastInvokeTime,
-            result = wait - timeSinceLastCall;
-
-        return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
-    }
-
-    function shouldInvoke(time) {
-        var timeSinceLastCall = time - lastCallTime,
-            timeSinceLastInvoke = time - lastInvokeTime;
-
-        // Either this is the first call, activity has stopped and we're at the
-        // trailing edge, the system time has gone backwards and we're treating
-        // it as the trailing edge, or we've hit the `maxWait` limit.
-        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
-        (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
-    }
-
-    function timerExpired() {
-        var time = now();
-        if (shouldInvoke(time)) {
-            return trailingEdge(time);
-        }
-        // Restart the timer.
-        timerId = setTimeout(timerExpired, remainingWait(time));
-    }
-
-    function trailingEdge(time) {
-        timerId = undefined;
-
-        // Only invoke if we have `lastArgs` which means `func` has been
-        // debounced at least once.
-        if (trailing && lastArgs) {
-            return invokeFunc(time);
-        }
-        lastArgs = lastThis = undefined;
-        return result;
-    }
-
-    function cancel() {
-        if (timerId !== undefined) {
-            clearTimeout(timerId);
-        }
-        lastInvokeTime = 0;
-        lastArgs = lastCallTime = lastThis = timerId = undefined;
-    }
-
-    function flush() {
-        return timerId === undefined ? result : trailingEdge(now());
-    }
-
-    function debounced() {
-        var time = now(),
-            isInvoking = shouldInvoke(time);
-
-        lastArgs = arguments;
-        lastThis = this;
-        lastCallTime = time;
-
-        if (isInvoking) {
-            if (timerId === undefined) {
-                return leadingEdge(lastCallTime);
-            }
-            if (maxing) {
-                // Handle invocations in a tight loop.
-                timerId = setTimeout(timerExpired, wait);
-                return invokeFunc(lastCallTime);
-            }
-        }
-        if (timerId === undefined) {
-            timerId = setTimeout(timerExpired, wait);
-        }
-        return result;
-    }
-    debounced.cancel = cancel;
-    debounced.flush = flush;
-    return debounced;
-}
-
-/**
- * Creates a throttled function that only invokes `func` at most once per
- * every `wait` milliseconds. The throttled function comes with a `cancel`
- * method to cancel delayed `func` invocations and a `flush` method to
- * immediately invoke them. Provide `options` to indicate whether `func`
- * should be invoked on the leading and/or trailing edge of the `wait`
- * timeout. The `func` is invoked with the last arguments provided to the
- * throttled function. Subsequent calls to the throttled function return the
- * result of the last `func` invocation.
- *
- * **Note:** If `leading` and `trailing` options are `true`, `func` is
- * invoked on the trailing edge of the timeout only if the throttled function
- * is invoked more than once during the `wait` timeout.
- *
- * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
- * until to the next tick, similar to `setTimeout` with a timeout of `0`.
- *
- * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
- * for details over the differences between `_.throttle` and `_.debounce`.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Function
- * @param {Function} func The function to throttle.
- * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
- * @param {Object} [options={}] The options object.
- * @param {boolean} [options.leading=true]
- *  Specify invoking on the leading edge of the timeout.
- * @param {boolean} [options.trailing=true]
- *  Specify invoking on the trailing edge of the timeout.
- * @returns {Function} Returns the new throttled function.
- * @example
- *
- * // Avoid excessively updating the position while scrolling.
- * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
- *
- * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
- * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
- * jQuery(element).on('click', throttled);
- *
- * // Cancel the trailing throttled invocation.
- * jQuery(window).on('popstate', throttled.cancel);
- */
-function throttle(func, wait, options) {
-    var leading = true,
-        trailing = true;
-
-    if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-    }
-    if (isObject(options)) {
-        leading = 'leading' in options ? !!options.leading : leading;
-        trailing = 'trailing' in options ? !!options.trailing : trailing;
-    }
-    return debounce(func, wait, {
-        'leading': leading,
-        'maxWait': wait,
-        'trailing': trailing
-    });
-}
-
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
-    var type = typeof value;
-    return !!value && (type == 'object' || type == 'function');
-}
-
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
-    return !!value && typeof value == 'object';
-}
-
-/**
- * Checks if `value` is classified as a `Symbol` primitive or object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
- * @example
- *
- * _.isSymbol(Symbol.iterator);
- * // => true
- *
- * _.isSymbol('abc');
- * // => false
- */
-function isSymbol(value) {
-    return typeof value == 'symbol' ||
-        (isObjectLike(value) && objectToString.call(value) == symbolTag);
-}
-
-/**
- * Converts `value` to a number.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to process.
- * @returns {number} Returns the number.
- * @example
- *
- * _.toNumber(3.2);
- * // => 3.2
- *
- * _.toNumber(Number.MIN_VALUE);
- * // => 5e-324
- *
- * _.toNumber(Infinity);
- * // => Infinity
- *
- * _.toNumber('3.2');
- * // => 3.2
- */
-function toNumber(value) {
-    if (typeof value == 'number') {
-        return value;
-    }
-    if (isSymbol(value)) {
-        return NAN;
-    }
-    if (isObject(value)) {
-        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
-        value = isObject(other) ? (other + '') : other;
-    }
-    if (typeof value != 'string') {
-        return value === 0 ? value : +value;
-    }
-    value = value.replace(reTrim, '');
-    var isBinary = reIsBinary.test(value);
-    return (isBinary || reIsOctal.test(value))
-        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
-        : (reIsBadHex.test(value) ? NAN : +value);
-}
-
-module.exports = throttle;
--
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