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Test many foreground and background color combos for compliance with WCAG 2.0 minimum contrast. Include one color per line, with an optional comma-separated label. Rows & Columns #FFFFFF, White #F2F2F2 #DDDDDD #CCCCCC #888888 #404040, Charcoal #000000, Black #2F78C5, Effective on Extremes #0F60B6, Effective on Lights #398EEA, Ineffective Use distinct rows & columns values Use the same rows & colum