در این فیلم، ما دو حالت رنگ سند را مورد بحث قرار خواهیم داد که در Illustrator در دسترس شما هستند و آنها RGB و CMYK هستند. و تنها یک حالت می تواند در داخل هر سند مشخص شده باشد. و بنابراین شما ممکن است یادآوری، اگر شما به منو فایل و فرمان جدید را انتخاب کنید، که می توانید آن را ببینید حالت رنگی که در بخش پیشرفته در اینجا ذکر شده است، و هنگامی که انتخاب می کنید به طور خودکار تغییر می کند نمایه بنابراین اگر شما یک نمایه چاپ، حالت رنگ خود را انتخاب کنید در حال تغییر به CMYK است، اما اگر شما به هر کدام از آنها تغییر دهید از پروفایل های دیگر، وب از طریق RGB اولیه هر چهار نفر از آنها می خواهند حالت رنگ را به RGB تغییر دهند که به طور کلی راه شما می خواهید به کار، که بسیاری از مردمی را شگفت زده می کند، اما حقیقت به این موضوع است این است که RGB رنگ حالت انعطاف پذیرتر است در حالی که CMYK به طور خاص برای چاپ طراحی شده است. و، بنابراین، بیایید نگاهی به نحوه کار آنها ببریم. هر دو RGB و CMYK برای رنگهای اولیه ایستاده اند بنابراین در مورد RGB، ما قرمز، سبز و آبی هستیم و اینها نور، به هر حال، خیلی سبک است که توسط یک دستگاه طراحی شده یا توسط یک دستگاه گرفته شده است. بنابراین اسکنرها و دوربین ها دستگاه های RGB هستند همانطور که صفحه کامپیوتر شما، اسبابک ها و دستگاه های شما است و هر چیز دیگری که روشن می شود در حال حاضر، چون شما با یک صفحه سیاه شروع میکنید، هنگامی که نور را اضافه می کنید، قصد دارید روشن کنید چیزها را به شما می دهد و به شما حس می کند که چه چیزی این را به نظر می رسد من به پنجره Window بروید و رنگ را به ترتیب انتخاب کنید برای آوردن پانل رنگ، در مورد من، وجود دارد علامت چک در مقابل رنگ، بنابراین من نمی خواهم فرمان را انتخاب کنید زیرا آن را پنهان می کند
and then, once you've brought up your color panel, go ahead and click on this double arrow icon a couple of times to expose your primary sliders. In my case, red, green and blue. If you don't see the RGB sliders, then you want to click on this fly out menu icon in the upper right corner of the panel and choose RGB. Now, notice that you can change these values from 0, that's the lowest, that basically turns the color off, all the way up to 255, which is the highest setting, and so what that does is it gives you 256 variations.
00:02:13 1 through 255 and then you also have the option of 0.
00:02:18 And so when you crank up the red and green values,
00:02:20 and you take the blue value all the way down
00:02:23 to its minimum, you end up with yellow.
00:02:26 If you crank the green and blue values up to 255,
00:02:30 and you take the red value all the way down to 0,
00:02:33 then you end up with cyan, and if you take
00:02:37 the blue and red values all the way up to 255,
00:02:39 and you take that green value down to 0,
00:02:42 then you end up with magenta, and I want you to
00:02:45 notice here inside the color panel
00:02:47 how these sliders update on the fly so you can actually
00:02:50 preview the color you're going to get.
00:02:52 If I move this triangle mid-way down the red slider,
00:02:55 I can see I'm going to get purple, and I can also
00:02:58 by the way, as I modify the red value, I can see
00:03:02 the green and blue sliders update on the fly.
00:03:06 And so Illustrator's always trying to give you a sense
00:03:08 for the color that you're going to get
00:03:10 because, obviously, there's all kinds of colors
00:03:12 besides red, green, blue, yellow, cyan, and magenta.
00:03:16 For example, if I crank all these values up
00:03:19 to their maximum, we end up with the brightest
00:03:21 color there is, which is white, and if we were to
00:03:24 take all these values down to their minimum of 0,
00:03:27 then we'd end up with no light, which gives us black.
00:03:31 Alright, now let's take a look at CMYK, which is
00:03:35 named for the primaries cyan, magenta, yellow
00:03:38 and the key color which is black.
00:03:41 And as opposed to light, these are inks,
00:03:44 and so unlike a screen, where you start
00:03:46 with blackness and then you brighten things up,
00:03:48 where print is concerned, you start with
00:03:50 a bright white page and then you darken things
00:03:53 by adding ink to it, which is why when you start
00:03:56 mixing the primaries, you end up with darker colors.
00:03:59 And so what I'll do is I'll go ahead and click on this
00:04:01 fly out menu icon again and switch to CMYK
00:04:04 so we can see those CMYK sliders and I'm
00:04:08 going to go ahead and crank cyan and magenta
00:04:10 up to their maximums of 100% and I'm going
00:04:13 to take the yellow and black values down to their minimums
00:04:17 of 0% and so as you can see here,
00:04:20 when you maximize the cyan and magenta values,
00:04:23 and you take out yellow and black, you end up with blue.
00:04:26 If you crank up the magenta and yellow values,
00:04:29 and then you take the cyan and black values down to 0,
00:04:33 you end up with red, so who knew that red
00:04:36 is actually made in part with yellow?
00:04:39 And then, if you crank the yellow and cyan values
00:04:42 up to their maximum, not surprisingly,
00:04:45 you end up with green, but notice that it's not
00:04:48 nearly as bright as the RGB green
00:04:51 so we're ending up with more muted colors over here.
00:04:54 I'm not showing what happens when you add black,
00:04:56 and that's because black is a darkening agent,
00:04:59 as you can see, so in our case, we're ending up
00:05:02 with the darker version of green.
00:05:04 So the big question is,
00:05:05 "When should you choose which color mode?"
00:05:08 Well, you want to use the RGB mode
00:05:10 any time you think your document might be viewed
00:05:13 on screen so if you're going to the web or
00:05:15 you're creating a .PDF file or an e-book, you want RGB.
00:05:19 If you're creating something for
00:05:20 a device or an app, then you want RGB.
00:05:23 Video is RGB.
00:05:25 Presentations such as PowerPoint or KeyNote graphics,
00:05:28 those should be RGB documents.
00:05:30 If you're creating something for a kiosk or
00:05:32 any other screen, you want RGB, and then here's the ringer.
00:05:37 If you're doing personal printing, that is,
00:05:39 you're printing to a device at your home
00:05:42 or office, and it's an inkjet device,
00:05:45 then you should definitely go with RGB
00:05:48 and I know that sounds crazy, but here's the thing:
00:05:50 inkjet printers have more than CMY and K.
00:05:54 They tend to have as many as eight inks,
00:05:57 and as a result, they can print way more colors
00:06:00 than you can get with conventional CMYK,
00:06:02 and they're actually expecting RGB documents,
00:06:06 and they'll do a much better job of printing RGB documents
00:06:10 and matching the colors than they will with CMYK.
00:06:13 The function of CMYK, by contrast, is very limited.
00:06:18 You want to use CMYK when you're
00:06:21 creating a document for pre-press.
00:06:22 That is, to say, you're going to ultimately
00:06:24 be taking the document to a professional print house
00:06:27 for commercial reproduction so if you're creating a
00:06:30 conventional book or a magazine, then CMYK is the way to go.
00:06:35 That's really it, by the way.
00:06:37 The only other time you'd use CMYK is because
00:06:40 you're doing personal printing to a toner-based CMYK
00:06:44 laser printer so in other words, your laser printer only has
00:06:47 cyan, magenta, yellow and black toner, and in that case,
00:06:51 then CMYK is going to give you a better sense
00:06:53 for how your document will look, but even then,
00:06:56 you may want to use RGB instead because the printer
00:06:59 driver is going to make the conversion to CMYK for you,
00:07:03 but your colors are going to diminish.
00:07:05 So take a look at this rainbow
00:07:07 over here on the right hand side.
00:07:09 Currently, we're working inside of a RGB document
00:07:12 and you can see up here in the title tab.
00:07:14 There it is right there, RGB.
00:07:15 But notice if I go up to the file menu,
00:07:17 choose document color, and convert this document to CMYK,
00:07:21 which you can do anytime you like,
00:07:23 watch what happens to this rainbow right there.
00:07:26 It diminishes like crazy. We just lose all kinds of colors.
00:07:30 Also notice what happened, I'll go ahead
00:07:33 and press CTRL + Z or CMD +Z on a Mac to undo that change,
00:07:36 Notice what happens to the RGB green and magenta.
00:07:39 They end up looking like this, and so CMYK
00:07:43 is fairly notorious for dropping out bright greens,
00:07:47 bright blues and bright purples.
00:07:50 You really lose them like crazy so, in other words,
00:07:52 unless you absolutely have to work in CMYK,
00:07:56 then you should be working with RGB.
00:07:59 And that's how the the two color modes work,
00:08:01 RGB and CMYK, here inside Illustrator.