http://cw.nanako.moe/w/index.php?action=history&feed=atom&title=Color_arithmeticColor arithmetic - Revision history2026-05-17T00:41:46ZRevision history for this page on the wikiMediaWiki 1.16.2http://cw.nanako.moe/w/index.php?title=Color_arithmetic&diff=12720&oldid=prevKeiji: created page2012-05-14T17:44:14Z<p>created page</p>
<p><b>New page</b></p><div><[#ontology [kind topic] [cats Color Math]]><br />
'''Color arithmetic''' is a system that seems to baffle many people, even though it is extremely logical.<br />
<br />
It goes like this:<br />
<br />
<table class='wikitable'><br />
<tr><th colspan='4'>-> Light -></th></tr><br />
<tr><th>Empty</th><th>Primary</th><th>Secondary</th><th>Full</th></tr><br />
<tr><br />
<td style='width: 8em; text-align: center;'>Black</td><br />
<td style='width: 8em; text-align: center;'>Red<br />Green<br />Blue</td><br />
<td style='width: 8em; text-align: center;'>Cyan<br />Magenta<br />Yellow</td><br />
<td style='width: 8em; text-align: center;'>White</td><br />
</tr><br />
<tr><th>Full</th><th>Secondary</th><th>Primary</th><th>Empty</th></tr><br />
<tr><th colspan='4'><- Pigments <-</th></tr><br />
</table><br />
<br />
You can easily read off the chart that, for example, '''magenta''' is a '''primary''' color of '''pigments'''.<br />
<br />
When combining two primary colors to make a secondary color, you move in the direction of the arrows, and choose the color that is not on lines you already chosen. So when dealing with '''light''', '''red''' (line 1) + '''green''' (line 2) makes '''yellow''' (line 3); when dealing with '''pigments''', '''cyan''' (line 1) + '''yellow''' (line 3) makes '''green''' (line 2).</div>Keiji