On page 93 in Chapter 4 (Creating Accessible Content) of "Constructing Accessible Web Sites" [1], Jim Thatcher writes, "It is clear that good contrast occurs when two colors are close to complementary. 'Closeness' can be calculated as if the R G B colors are points in the three-dimensional space: Distance = ( (R1-R2) ^2 + (G1-G2) ^2 + (B1-B2) ^2) ^1/2 " [1] http://www.jimthatcher.com/book.htm -- wendy a chisholm world wide web consortium web accessibility initiative http://www.w3.org/WAI/ /--Received on Friday, 29 August 2003 18:38:20 GMT
This archive was generated by hypermail 2.2.0+W3C-0.50 : Monday, 7 December 2009 10:47:25 GMT