All About Color

Carl Shank • September 5, 2022

All About Color. In modern typography and printing, the use of color, once thought too expensive, is now commonplace. Color laser printers are found in many offices, churches and certainly printer shops. Not many people, however, understand the science of color and how we get colored images and scans to the printed page. So, while I am certainly no expert in color technology, here are a few definitions and pointers in color printing.


DPI vs LPI. Let's start at the beginning. Every laser printer has a DPI, or dots per inch, that it places on a sheet of paper. Many older laser printers are rated at least at 300 DPI, with many more today at 600 DPI and above. What is DPI? Dots Per Inch (DPI) is literally a measurement of the maximum number of dots any printer has access to per inch. The dots reference the unit in which all printers and computers are measured, namely, binary code. As such, each dot is either off or on. These dots make up a grid pattern which can only print in black and white. There are no colors or shades of colors (such as grey). The higher the DPI the "smoother" the print looks to the human eye.


LPI, or Lines per Inch, is a measurement of the number of rounded dots that are in an inch. LPI is also known as a screen, and is given its name because each rounded dot has a centre point that’s created in varying sizes. The LPI is directly related to the DPI which is directly related to resolution. Depending on the resolution, one may acquire a picture that seems ‘grainier’ than others – that is, pixilated. For instance, to get a dot that actually appears round rather than square, or pixilated, one must have a DPI of at least 600. A glossy magazine is usually printed with an LPI of 150; as it relates to DPI, which means that the resolution was 2400 DPI or higher. 53 LPI is typical of an office laser. Newspapers are about 90 LPI.


Halftones. We use halftones to print tints. This uniform field of small dots lets paper show through. The more paper that shows through, the lighter the tint. The bigger the spots, the darker the tint. A halftone is measured in lines per inch (LPI). The more lines per inch, the finer the halftone (See Sample Below). To camouflage the rows of spots, a halftone is printed at an angle. If we printed a black halftone at 0 degrees we would see the rows of dots. So printing at an angle tricks our eyes so that we do not realize we are seeing rows and columns of dots at all. Now we are ready to talk about color.


About Color. Color exists as an effect of light. The white light from say the sun is made up of a rainbow of impulses that our brain interprets as colors. All the colors of the rainbow, when added up, make a white light. They are called primary additive colors. (See "All About Color" below.) Computer monitors use three primary colors —Red, Green and Blue—otherwise know as RGB. Since the colors of objects are really white light minus the waves absorbed by the object, they are called primary subtractive colors, otherwise knows as printing colors, or CMYK colors—Cyan, made up of blue and green, Magenta, made up of blue and red, Yellow, made up of red and green. (See "All About Color" below). The K color is actually Black, usually added to give strength and body to a printed picture or image.


Color separations are used for each of the four process colors by a professional lithographic printer. The final result of a color separation is four sheets of film, one for each of the process colors. The films are then used to create the four plates of a process-color printing press.


Going back to halftone angles. Black, the most visible, is printed at a 45 degree angle, Cyan at a 75 degree angle, Magenta at a 15 degree angle, and Yellow at a 0 degree angle. Four halftones are superimposed on each other. To minimize any interference patterns (called "moirés") the halftones are angled 30 degrees apart, yielding a tight, nondistracting compilation. Technological improvements now create microdots that don't use any angles at all. The spots now fall side by side, not atop one another and fit so neatly together that the viewer is unaware spots even exist in their image or photo.

Read More:  Difference Between DPI and LPI | Difference Between http://www.differencebetween.net/technology/difference-between-dpi-and-lpi/#ixzz7dy33lfNT. I am indebted to Jan V. White as well for his "Understanding Color Separations." See his book, Color For Impact. Also Mix & Match: Designer's Colors, Quarto Publishing, 1990. Also, credit to John McWade, Before & After, Vol 4, No. 2, 1994.


Successful Layout & Design

By Carl Shank • October 13, 2026
Type Trends 2026 Analysis Tiffany Wardle, The Type Founders copy and design service editor, has offered her perspectives on the state of type in 2026 (SEE https://bit.ly/4s5fgNV ) She offers the summary that “no single style has defined 2026.” She, instead, offers that “variety” is the defining feature of 2026 — “traditional and unconventional approaches, maximalism beside restraint, and pairings without an obvious connection that still suit their context.” She notes that familiar or bookish type is found in unexpected roles and scales, that “expressive type is paired with pragmatic type, and that character-rich typefaces used as logotypes with broader use of variable fonts for creativity and performance.” Instead of the traditional typeface advice of carefully selecting faces that harmonize with one another, and the classic sans-serif headlines with serif text, she notes that type in 2026 emphasizes contradiction — “Contradiction gives much current typography its appeal. A bold, mannered display face can sit beside a practical sans serif; the two need no obvious formal connection. Their contrast creates energy. These ideas are not new. Typography has always adapted and recombined earlier approaches for new purposes. What matters now is the particular mix—and the wide range of methods that can feel contemporary at once.” The age-old sage advice, that I posted in 2021, notes this about how to use and combine typefaces — "Robert Bringhurst wisely says — “The best type for a book about bicycle racing will be, first of all, an inherently good type. Second, it will be a good type for books, which is to say, a good type for comfortable long-distance reading. Third, it will be a type sympathetic to the theme. It will probably be lean, strong and swift; perhaps it will also be Italian. But it is unlikely to be carrying excess ornament or freight, and unlikely to be indulging in a masquerade.” ( The Elements of Typographic Style , 91). Jan White echoes this sentiment about choosing type in How To Spec Type — “There is no such thing as 'right' or 'correct' use of type. There is only vivid and eloquent effectiveness, or numbing and misleading ineffectiveness.” (10) Consequently, a math textbook will use a different typeface than a slogan on a can of soda or a bottle of wine. White suggests the following questions for the would-be use of a typeface in any context — [1] Does the way the type is handled in a specific circumstance fulfill its purpose? [2] Is it doing the job efficiently? [3] Is the message coming through clearly and vividly? is the message jumping off the page into the reader's mind crispy and memorably? (10) He goes on to say that “good typography is transparent, like blister-packaging — exposing the content inside and letting it speak for itself.” He agrees with Bringhurst about the use of type ornaments — “too often typography is used like gift wrapping, in the hope that cosmetic prettification will make the package seem more desirable.” (10) So then, “good typography links the verbal with the visual to produce arresting results. Good typography clarifies. It articulates. It elucidates. It expresses meaning.” (11) Many would-be editors and writers and office personnel try too hard when it comes to setting type. With the thousands of possible typefaces that are on the market today, produced by would-be typographers, playing with digital type producing programs, many people can get overwhelmed and confused and frustrated by what typeface to use.”(SEE my blog “How To Choose the Right Type for the Right Job,” March 29, 2021, www.caretypography.com ) This age-old and wise advice has been supplanted, I would suggest, by a post-modern theoretical, indeed theological, cast. Like Dutch De Stijl (See Reference ), or Dadaism (See Reference ), or Psychedelic (See Reference ) or Punk (See Reference ), or Grunge type (See Reference ), the cultural context of rebellion against any typography rules of readability and legibility and well-defined type go out the window in favor of whatever gives “energy” to an ad or a poster or a book that wins the day. Wardle goes on to say about 2026 type combinations — “Unexpected roles. Bookish, text-oriented, or familiar type appears at surprising scales or in applications not usually associated with it. Contrasting character. Maximalist or highly expressive type sits beside pragmatic type, with the overall composition mattering more than obvious stylistic harmony.” She says these contrasts “invite closer attention to the content and reasoning behind each choice.” Post-modernism rejects absolutes and what I would call “common-sense” order and structure. Everyone makes up their own rules, their own agendas, their own type combinations, ignoring centuries of time-tested typography. This is what “feeling contemporary” means. If I am correct, then the 2026 typeface choices and patterns will likewise disappear from regular use. Using what has been called display type for “normal” use betrays one of White’s criticisms — “too often typography is used like gift wrapping, in the hope that cosmetic prettification will make the package seem more desirable.” What is important is what is on the inside of the package, not the audacious gift wrapping.  I would imagine that Wardle would point to White’s other typography notes that say “good typography links the verbal with the visual to produce arresting results. Good typography clarifies. It articulates. It elucidates. It expresses meaning.” She might point out the “energy” aspect of 2026 type choices and combinations and maintain that they accomplish the same thing as White suggests. I am not at all sure about that. Some of Fonts In Use samples below are what Wardle highlights (SEE https://fontsinuse.com ). You make the judgment call.
By Carl Shank • September 9, 2026
Typeface characteristics are the visual and structural features that distinguish one typeface from another. They determine a typeface’s historical appearance, readability, personality, and appropriate use. Useful Ways to Analyze Any Typeface. When examining an unfamiliar typeface, ask these questions in order (provided by ChatGPT) — Does it have serifs? What kind of serifs? How much thick/thin contrast is present? What is the stress angle? What is the x-height? How wide or narrow are the letters? How are the counters constructed? What do the terminals look like? What are distinctive letters such as a, g, e, R, and Q doing? How does the typeface behave in a paragraph—open, dark, dense, airy, mechanical, or calligraphic? What historical or technological process does its construction suggest? What personality does the combination of these characteristics produce? There are a number of online sources to help identify typefaces ( See Feb. 6, 2022 Blog for more explanation and use.) Sources include — MyFonts ( www.myfonts.com/WhatTheFont ), FontSquirrel ( www.fontsquirrel.com/matcherator ) WhtFontIs ( www.whatfontis.com ) Identifont ( www.identifont.com ) is one of the best. Here are the questions it will ask you — Does it have feet (serifs) or not (sans-serifs)? What style is the tail on uppercase Q? What style is the ampersand (the &)? Is the numeral “4” open or closed? What style of vertical line does the Dollar sign ($) have? How high is the center vertex of the uppercase M? Sit on the line or not? What type of bar does the uppercase G have? How far below the baseline does the uppercase J extend? What about the uppercase R? How far does the center bar extend? Is there a gap with the vertical part of the letter? Does it meet or cross the vertical? What about the question mark (?) What shape is the dot at the bottom? Is it circular, square, triangular, rectangular or even missing? The important point is that a typeface should not be identified by a single characteristic. Its identity comes from the interaction of serifs, contrast, stress, proportions, counters, terminals, spacing, and letterform construction.
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