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TT-009 · high-contrast-accessible

High Contrast Access

고대비 접근성 · K-12 Textbooks

12 pt body, 7:1 contrast (WCAG AAA) for all text, the color-blind-safe Okabe–Ito palette and a distinct shape for every element.

View sample PDF (free) PDF 1.3 MBBuy this style pack $24Family bundle: K-12 Textbooks $79

Previews come from the same sample manuscript (“[Example] Fundamentals of Data Science”) built in this style.

Type specimen
Type specimen

About this style

FamilyK-12 Textbooks — School textbooks and companion workbooks. Clear hierarchy, generous body text, subject colors.
Best forLow-vision, dyslexic and color-blind learners, lifelong and older learners, public-sector materials, accessibility-certified books
Use casesTextbooks
MoodCleanCalm
Formality · Age groupBalanced · Elementary, Secondary

Color palette

  • black (text)#000000
  • OI blue#0072B2
  • OI orange#E69F00
  • OI bluish green#009E73
  • OI sky blue#56B4E9
  • OI yellow#F0E442

Fonts

FontRoleLicense
Atkinson HyperlegibleBody & headingsSIL Open Font License 1.1
Atkinson HyperlegibleBody & headingsSIL Open Font License 1.1
PretendardFallbackSIL Open Font License 1.1
JetBrains MonoCodeSIL Open Font License 1.1
IBM Plex SerifMath variables (italic)SIL Open Font License 1.1

Building blocks

Chapter openerBlack number in a yellow circle, 28 pt title with a 4 pt black underline, flowing layout with no overlaps
Element boxesTip = circle and solid line, caution = triangle and double line, example = square and frame, sidebar = diamond and dotted line, check = check box and dashed line
Tables1 pt black rules on every cell, 3 pt header underline, 10.5 pt
Running headBespoke running head
CoverBespoke cover

Format and build checks

188 × 257 mm · type area 146 × 209 mm · body 9.5pt/16pt
Margins top 22 · bottom 26 · inside 24 · outside 18 mm

All build checks passedMin. contrast 7.62:1TOC 20/20Overflow: 0Fonts embedded · OFL ✓Print preflight ✓

Textbook pack (English edition)

A new-book pack (.zip) in this style: theme CSS, fonts (OFL), build and check tools, an example chapter, an empty chapter skeleton and a sample PDF. 188 × 257 mm, PDF/X-4 and CMYK for offset print.

Pack size 7.0 MB · version 2026.10.08

Buy this style pack $24Family bundle: K-12 Textbooks $79Korean edition of this style

KDP products in this style

Start a new book in this style (free form)

  1. Get the textbook pack and unzip it → folder book-high-contrast-accessible-en.
  2. Fill in the form and select Download files (.zip). A custom book.json and one skeleton file per chapter are generated in this browser (nothing is uploaded, free).
  3. Unzip the download over the pack folder, then run build.bat (or ./build.sh).
Preview book.json

  



More styles in this family
K-12 Textbooks →