About this app

Pick a hue, saturation and lightness, choose complementary, triadic, analogous, split-complementary or tetradic, and get the swatches with hex codes plus a five-step shade ramp for each. Every colour is then measured for contrast against white and black and labelled honestly: body text, large text only, or decoration only.

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Win rates and risk grades are computed by Masterboard from tracked trade outcomes after the strategy is assessed — not self-reported by sellers. Past performance does not guarantee future results.