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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.