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The laws of contrast of colour ⠃⠗⠋ braille edition

Grade 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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367,087 braille cells · 380 embossed pages at 40×25 · 817 unrepresentable characters omitted

⠎⠉⠁⠇⠑⠎⠀⠁⠗⠑⠀⠑⠟⠥⠊⠙⠊⠌⠁⠝⠞⠂⠀⠯⠀⠁⠗⠑⠀⠿⠍⠫⠀⠷⠀⠀
⠑⠟⠥⠊⠙⠊⠌⠁⠝⠞⠀⠞⠕⠝⠑⠎⠲⠀⠼⠉⠲⠀⠠⠞⠀⠁⠇⠇⠀⠮⠀⠉⠕⠇⠳⠗⠎⠀
⠁⠗⠑⠀⠹⠥⠎⠀⠉⠕⠝⠞⠁⠔⠫⠀⠔⠀⠁⠀⠀⠉⠊⠗⠉⠇⠑⠂⠀⠘⠱⠀⠏⠇⠁⠝⠀
⠉⠕⠍⠏⠗⠑⠓⠢⠙⠎⠀⠮⠀⠏⠥⠗⠑⠀⠉⠕⠇⠳⠗⠎⠆⠀⠮⠀⠉⠢⠞⠗⠁⠇⠀
⠎⠏⠁⠉⠑⠂⠀⠀⠃⠇⠁⠉⠅⠆⠀⠯⠀⠮⠀⠊⠝⠞⠻⠍⠫⠊⠁⠞⠑⠀⠎⠏⠁⠉⠑⠀⠮⠀
⠏⠥⠗⠑⠀⠉⠕⠇⠳⠗⠎⠂⠀⠃⠗⠕⠅⠢⠀⠃⠽⠀⠮⠀⠀⠧⠜⠊⠳⠎⠀
⠏⠗⠕⠏⠕⠗⠞⠊⠕⠝⠎⠀⠷⠀⠃⠇⠁⠉⠅⠲⠀⠀⠀⠀⠼⠁⠙⠋⠲⠀⠠⠮⠀
⠙⠊⠁⠛⠗⠁⠍⠂⠀⠵⠀⠚⠀⠙⠑⠎⠉⠗⠊⠃⠫⠂⠀⠹⠥⠎⠀⠗⠑⠏⠗⠑⠎⠢⠞⠎⠀⠮⠀
⠇⠪⠻⠬⠀⠀⠷⠀⠏⠥⠗⠑⠀⠉⠕⠇⠳⠗⠎⠀⠃⠽⠀⠱⠊⠞⠑⠂⠀⠯⠀⠸⠮⠀
⠛⠗⠁⠙⠁⠞⠊⠕⠝⠀⠃⠽⠀⠃⠇⠁⠉⠅⠆⠀⠸⠮⠀⠀⠍⠕⠙⠊⠋⠊⠉⠁⠞⠊⠕⠝⠎⠀⠃⠽
⠀⠸⠮⠀⠍⠥⠞⠥⠁⠇⠀⠍⠊⠭⠞⠥⠗⠑⠎⠂⠀⠮⠀⠍⠕⠙⠊⠋⠊⠉⠁⠞⠊⠕⠝⠀⠷⠀
⠓⠥⠑⠎⠂⠀⠀⠯⠀⠮⠀⠍⠕⠙⠊⠋⠊⠉⠁⠞⠊⠕⠝⠀⠷⠀⠃⠗⠑⠁⠅⠬⠲⠀⠠⠺⠑⠀⠺⠀
⠏⠗⠑⠎⠢⠞⠇⠽⠀⠊⠝⠟⠥⠊⠗⠑⠀⠊⠝⠞⠕⠀⠮⠀⠀⠏⠕⠎⠎⠊⠃⠊⠇⠊⠞⠽⠀⠷⠀
⠗⠑⠁⠇⠊⠵⠬⠀⠭⠀⠃⠽⠀⠍⠑⠁⠝⠎⠀⠷⠀⠉⠕⠇⠳⠗⠫⠀⠍⠁⠞⠻⠊⠁⠇⠎⠲⠀⠀⠀
⠼⠁⠙⠛⠲⠀⠠⠺⠑⠀⠓⠀⠏⠗⠑⠎⠥⠍⠫⠤⠤⠼⠁⠲⠀⠠⠞⠀⠮⠀⠝⠕⠗⠍⠁⠇⠀
⠞⠕⠝⠑⠀⠷⠀⠑⠁⠡⠀⠷⠀⠮⠀⠎⠉⠁⠇⠑⠎⠀⠀⠊⠎⠀⠵⠀⠏⠥⠗⠑⠀⠵⠀
⠏⠕⠎⠎⠊⠃⠇⠑⠲⠀⠼⠃⠲⠀⠠⠞⠀⠮⠀⠞⠕⠝⠑⠎⠀⠃⠑⠜⠬⠀⠮⠀⠎⠁⠍⠑⠀
⠝⠥⠍⠃⠻⠀⠔⠀⠀⠁⠇⠇⠀⠮⠀⠎⠉⠁⠇⠑⠎⠂⠤⠤⠃⠕⠹⠀⠘⠹⠀⠷⠀⠮⠀⠏⠥⠗⠑⠀
⠉⠕⠇⠳⠗⠎⠀⠯⠀⠘⠹⠀⠷⠀⠮⠀⠃⠗⠕⠅⠢⠀⠀⠉⠕⠇⠳⠗⠎⠂⠤⠤⠁⠗⠑⠂⠀⠞⠕⠀
⠮⠀⠎⠊⠛⠓⠞⠂⠀⠷⠀⠑⠟⠥⠁⠇⠀⠙⠑⠏⠹⠲⠀⠼⠉⠲⠀⠠⠞⠀⠊⠋⠀⠹⠗⠑⠑⠀
⠞⠕⠝⠑⠎⠂⠀⠀⠷⠀⠮⠀⠎⠁⠍⠑⠀⠝⠥⠍⠃⠻⠂⠀⠃⠑⠀⠞⠁⠅⠢⠀⠔⠀⠹⠗⠑⠑⠀
⠉⠕⠝⠎⠑⠉⠥⠞⠊⠧⠑⠀⠎⠉⠁⠇⠑⠎⠂⠀⠮⠀⠞⠕⠝⠑⠀⠷⠀⠀⠮⠀
⠊⠝⠞⠻⠍⠫⠊⠁⠞⠑⠀⠎⠉⠁⠇⠑⠀⠊⠎⠀⠮⠀⠍⠑⠁⠝⠀⠃⠑⠞⠺⠑⠢⠀⠮⠀
⠉⠕⠇⠳⠗⠎⠀⠷⠀⠮⠀⠑⠭⠞⠗⠑⠍⠑⠀⠀⠎⠉⠁⠇⠑⠎⠲⠀⠠⠭⠀⠊⠎⠀⠹⠥⠎⠀
⠑⠁⠎⠽⠀⠞⠕⠀⠑⠭⠏⠇⠁⠔⠀⠮⠀⠍⠕⠙⠊⠋⠊⠉⠁⠞⠊⠕⠝⠎⠀⠷⠀⠁⠀⠏⠥⠗⠑⠀

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.