I have updated the category-colors tool to use the CIECAM02-UCS color space, because the spacing is much better than d3's default CIELAB. (previously)
Here is the tool: http://jnnnnn.github.io/category-colors-constrained.html
Here are some results.
Good Colors Against A White Background
function constraint(jab) {
return jab_dist(d3.jab("white"), jab) > 35
&& jab.a**2 + jab.b**2 > 10**2
&& jab.J > 50;
}
"#1b70fc", "#faff16", "#d50527", "#158940", "#f898fd", "#24c9d7", "#cb9b64", "#866888", "#22e67a", "#e509ae", "#9dabfa", "#437e8a", "#b21bff", "#ff7b91", "#94aa05", "#ac5906", "#82a68d", "#fe6616", "#7a7352", "#f9bc0f", "#b65d66", "#07a2e6", "#c091ae", "#8a91a7", "#88fc07", "#ea42fe", "#9e8010", "#10b437", "#c281fe", "#f92b75", "#07c99d", "#a946aa", "#bfd544", "#16977e", "#ff6ac8", "#a88178", "#5776a9", "#678007", "#fa9316", "#85c070", "#6aa2a9", "#989e5d", "#fe9169", "#cd714a", "#6ed014", "#c5639c", "#c23271", "#698ffc", "#678275", "#c5a121", "#a978ba", "#ee534e", "#d24506", "#59c3fa", "#ca7b0a", "#6f7385", "#9a634a", "#48aa6f", "#ad9ad0", "#d7908c", "#6a8a53", "#8c46fc", "#8f5ab8", "#fd1105", "#7ea7cf", "#d77cd1", "#a9804b", "#0688b4", "#6a9f3e", "#ee8fba", "#a67389", "#9e8cfe", "#bd443c", "#6d63ff", "#d110d5", "#798cc3", "#df5f83", "#b1b853", "#bb59d8", "#1d960c", "#867ba8", "#18acc9", "#25b3a7", "#f3db1d", "#938c6d", "#936a24", "#a964fb", "#92e460", "#a05787", "#9c87a0", "#20c773", "#8b696d", "#78762d", "#e154c6", "#40835f", "#d73656", "#1afd5c", "#c4f546", "#3d88d8", "#bd3896", "#1397a3", "#f940a5", "#66aeff", "#d097e7", "#fe6ef9", "#d86507", "#8b900a", "#d47270", "#e8ac48", "#cf7c97", "#cebb11", "#718a90", "#e78139", "#ff7463", "#bea1fd"
A wide range of colors
jab.J > 45 && jab.J < 95:
"#3957ff", "#d3fe14", "#c9080a", "#fec7f8", "#0b7b3e", "#0bf0e9", "#c203c8", "#fd9b39", "#888593", "#906407", "#98ba7f", "#fe6794", "#10b0ff", "#ac7bff", "#fee7c0", "#964c63", "#1da49c", "#0ad811", "#bbd9fd", "#fe6cfe", "#297192", "#d1a09c", "#78579e", "#81ffad", "#739400", "#ca6949", "#d9bf01", "#646a58", "#d5097e", "#bb73a9", "#ccf6e9", "#9cb4b6", "#b6a7d4", "#9e8c62", "#6e83c8", "#01af64", "#a71afd", "#cfe589", "#d4ccd1", "#fd4109", "#bf8f0e", "#2f786e", "#4ed1a5", "#d8bb7d", "#a54509", "#6a9276", "#a4777a", "#fc12c9", "#606f15", "#3cc4d9", "#f31c4e", "#73616f", "#f097c6", "#fc8772", "#92a6fe", "#875b44", "#699ab3", "#94bc19", "#7d5bf0", "#d24dfe", "#c85b74", "#68ff57", "#b62347", "#994b91", "#646b8c", "#977ab4", "#d694fd", "#c4d5b5", "#fdc4bd", "#1cae05", "#7bd972", "#e9700a", "#d08f5d", "#8bb9e1", "#fde945", "#a29d98", "#1682fb", "#9ad9e0", "#d6cafe", "#8d8328", "#b091a7", "#647579", "#1f8d11", "#e7eafd", "#b9660b", "#a4a644", "#fec24c", "#b1168c", "#188cc1", "#7ab297", "#4468ae", "#c949a6", "#d48295", "#eb6dc2", "#d5b0cb", "#ff9ffb", "#fdb082", "#af4d44", "#a759c4", "#a9e03a", "#0d906b", "#9ee3bd", "#5b8846", "#0d8995", "#f25c58", "#70ae4f", "#847f74", "#9094bb", "#ffe2f1", "#a67149", "#936c8e", "#d04907", "#c3b8a6", "#cef8c4", "#7a9293", "#fda2ab", "#2ef6c5", "#807242", "#cb94cc", "#b6bdd0", "#b5c75d", "#fde189", "#b7ff80", "#fa2d8e", "#839a5f", "#28c2b5", "#e5e9e1", "#bc79d8", "#7ed8fe", "#9f20c3", "#4f7a5b", "#f511fd", "#09c959", "#bcd0ce", "#8685fd", "#98fcff", "#afbff9", "#6d69b4", "#5f99fd", "#aaa87e", "#b59dfb", "#5d809d", "#d9a742", "#ac5c86", "#9468d5", "#a4a2b2", "#b1376e", "#d43f3d", "#05a9d1", "#c38375", "#24b58e", "#6eabaf", "#66bf7f", "#92cbbb", "#ddb1ee", "#1be895", "#c7ecf9", "#a6baa6", "#8045cd", "#5f70f1", "#a9d796", "#ce62cb", "#0e954d", "#a97d2f", "#fcb8d3", "#9bfee3", "#4e8d84", "#fc6d3f", "#7b9fd4", "#8c6165", "#72805e", "#d53762", "#f00a1b", "#de5c97", "#8ea28b", "#fccd95", "#ba9c57", "#b79a82", "#7c5a82", "#7d7ca4", "#958ad6", "#cd8126", "#bdb0b7", "#10e0f8", "#dccc69", "#d6de0f", "#616d3d", "#985a25", "#30c7fd", "#0aeb65", "#e3cdb4", "#bd1bee", "#ad665d", "#d77070", "#8ea5b8", "#5b5ad0", "#76655e", "#598100", "#86757e", "#5ea068", "#a590b8", "#c1a707", "#85c0cd", "#e2cde9", "#dcd79c", "#d8a882", "#b256f9", "#b13323", "#519b3b", "#dd80de", "#f1884b", "#74b2fe", "#a0acd2", "#d199b0", "#f68392", "#8ccaa0", "#64d6cb", "#e0f86a", "#42707a", "#75671b", "#796e87", "#6d8075", "#9b8a8d", "#f04c71", "#61bd29", "#bcc18f", "#fecd0f", "#1e7ac9", "#927261", "#dc27cf", "#979605", "#ec9c88", "#8c48a3", "#676769", "#546e64", "#8f63a2", "#b35b2d", "#7b8ca2", "#b87188", "#4a9bda", "#eb7dab", "#f6a602", "#cab3fe", "#ddb8bb", "#107959", "#885973", "#5e858e", "#b15bad", "#e107a7", "#2f9dad", "#4b9e83", "#b992dc", "#6bb0cb", "#bdb363", "#ccd6e4", "#a3ee94", "#9ef718", "#fbe1d9", "#a428a5", "#93514c", "#487434", "#e8f1b6", "#d00938", "#fb50e1", "#fa85e1", "#7cd40a", "#f1ade1", "#b1485d", "#7f76d6", "#d186b3", "#90c25e", "#b8c813", "#a8c9de", "#7d30fe", "#815f2d", "#737f3b", "#c84486", "#946cfe", "#e55432", "#a88674", "#c17a47", "#b98b91", "#fc4bb3", "#da7f5f", "#df920b", "#b7bbba", "#99e6d9", "#a36170", "#c742d8", "#947f9d", "#a37d93", "#889072", "#9b924c", "#23b4bc", "#e6a25f", "#86df9c", "#a7da6c", "#3fee03", "#eec9d8", "#aafdcb", "#7b9139", "#92979c", "#72788a", "#994cff", "#c85956", "#7baa1a", "#de72fe", "#c7bad8", "#85ebfe", "#6e6089", "#9b4d31", "#297a1d", "#9052c0", "#5c75a5", "#698eba", "#d46222", "#6da095", "#b483bb", "#04d183", "#9bcdfe", "#2ffe8c", "#9d4279", "#c909aa", "#826cae", "#77787c", "#a96fb7", "#858f87", "#fd3b40", "#7fab7b", "#9e9edd", "#bba3be", "#f8b96c", "#7be553", "#c0e1ce", "#516e88", "#be0e5f", "#757c09", "#4b8d5f", "#38b448", "#df8780", "#ebb3a0", "#ced759", "#f0ed7c", "#e0eef1", "#0969d2", "#756446", "#488ea8", "#888450", "#61979c", "#a37ad6", "#b48a54", "#8193e5", "#dd6d89", "#8aa29d", "#c679fe", "#a4ac12", "#75bbb3", "#6ae2c1", "#c4fda7", "#606877", "#b2409d", "#5874c7", "#bf492c", "#4b88cd", "#e14ec0", "#b39da2", "#fb8300", "#d1b845", "#c2d083", "#c3caef", "#967500", "#c56399", "#ed5a05", "#aadff6", "#6685f4", "#1da16f", "#f28bff", "#c9c9bf", "#c7e2a9", "#5bfce4", "#e0e0bf", "#e8e2e8", "#ddf2d8", "#9108f8", "#932dd2", "#c03500", "#aa3fbc", "#547c79", "#9f6045", "#04897b", "#966f32", "#d83212", "#039f27", "#df4280", "#ef206e", "#0095f7", "#a5890d", "#9a8f7f", "#bc839e", "#88a23b", "#e55aed", "#51af9e", "#5eaf82", "#9e91fa", "#f76c79", "#99a869", "#d2957d", "#a2aca6", "#e3959e", "#adaefc", "#5bd14e", "#df9ceb", "#fe8fb1", "#87ca80", "#fc986d", "#2ad3d9", "#e8a8bb", "#a7c79c", "#a5c7cc", "#7befb7", "#b7e2e0", "#85f57b", "#f5d95b", "#dbdbff", "#fddcff", "#6e56bb", "#226fa8", "#5b659c", "#58a10f", "#e46c52", "#62abe2", "#c4aa77", "#b60e74", "#087983", "#a95703", "#2a6efb", "#427d92",
Light colors
"#96caff", "#faff16", "#fda899", "#13fcbb", "#f7fef7", "#eba6ff", "#bcca83", "#57e502", "#feaf23", "#c6c0cb", "#38f1fd", "#9ccfbe", "#f9feae", "#a6fe8e", "#bfcd03", "#ebd3b6", "#fec0df", "#c2eefc", "#cac2fc", "#bcfcd6", "#f4e5ff", "#f9dc56", "#80da93", "#ebb678", "#b1fb27", "#30dfc8", "#8dd0df", "#1ff479", "#cedbd8", "#d2e6b8", "#85feea", "#97db5c", "#deb7b7", "#cad5ef", "#d0eb6d", "#fe9fe1", "#bdc7ad", "#fcdadf", "#d9bae2", "#dac05a", "#ecda91", "#fef5d0", "#ffa4bc", "#43d9fd", "#d2fcf5", "#b1c7d0", "#e6f0fb", "#83e5bd", "#b2e598", "#fdfb73", "#73fd58", "#a6cfa2", "#a1e3e1", "#e4e21c", "#8ef8b0", "#e2c30e", "#fdc7ff", "#cefeb9", "#0be597", "#d4c491", "#fdc5b5", "#e4fdde", "#d5ccc7", "#acdaf8", "#e4c9da", "#fdc664", "#badfc5", "#bbd15f", "#fdf1f7", "#b4c3ed", "#93e8fd", "#ddd9e3", "#e5e5d7", "#98e116", "#e0d0fb", "#fccd95", "#aafdfe", "#5cd9de", "#deba9d", "#dce994", "#d6b2fb", "#c5bedd", "#bec4c3", "#feab79", "#82ea7f", "#fed7f3", "#8affd2", "#d6fc50", "#e8aed9", "#f7b7c2", "#2bf4e5", "#ffad53", "#11ff13", "#d3fe94", "#c2e530", "#aef161", "#fee5d4", "#a3d378", "#dad351", "#fec328", "#a4e3b3", "#a9efd9", "#feeb8a", "#85d4cd", "#e0b4c9", "#55e358", "#bddbe1", "#48ffa0", "#d6eee1", "#fee3b0", "#ff99fd", "#3fe0b0", "#84d7fe", "#7be9d3", "#1bf3cd", "#d4d4af", "#d6d278", "#70fffe", "#aac8e1", "#ffb0fe", "#b5ccbf", "#c6ccd5", "#ccd9c5", "#feee3e", "#cdc0ab", "#58e182", "#e9b8f8", "#f7bc97", "#b4e275", "#bee8e1", "#e1e3ff", "#ebebb2", "#8fd4af", "#c0d3a2", "#e7c67d", "#6ceba9", "#d8cde4", "#eacdc6", "#d4eef1", "#e7e8e9", "#7deaec", "#88f31d", "#c0efbe", "#75d8be", "#a0d1d3", "#fdacd4", "#09f64f", "#c4dc8c", "#d0d1fc", "#ecccf1", "#f7d517", "#d0dde8", "#e7dadc", "#78fe8b", "#e6e373", "#cde5fd", "#b1fead", "#e7fec5", "#e9fdfd", "#b9c3d9", "#cebec1", "#eab3a4", "#edb84a", "#8aea52", "#bad5fd", "#a7ddea", "#f9c9d5", "#f2deec", "#fbf4e7", "#b3d8cf", "#feb9ed", "#96e89d", "#d5d99c", "#efd16f", "#ecfb92", "#d0bbd2", "#89d97b", "#cdc47c", "#acd345", "#21e0f4", "#9ed693", "#9adfcd", "#ccdc4c", "#e3e3c2", "#d8f003", "#e7f158", "#b8fff2", "#cdb9e9", "#faa8ae", "#cac75c", "#d7d119", "#eccb48", "#bbd7ea", "#a0f3c1", "#cbeaa6", "#c5f4e0", "#ede9f5", "#b8bffd", "#97cced", "#70dba6", "#72dbf2", "#e6bddd", "#ddc2fe", "#b8ddb0", "#e7d29e", "#c7ec8c", "#d1edce", "#c8fb75", "#f9ffe8", "#e9abeb", "#b5d1b3", "#feb6af", "#ffba6e", "#92f772", "#e8f4cb", "#ffeda8", "#e5ff77", "#f6f8fe", "#c4c699", "#c5ca3f", "#e9bb29", "#19e2dc", "#d9bfb4", "#c6cabf", "#e6c091", "#bcd0d0", "#d5cbd3", "#aae346", "#d0d2d3", "#f1c7ab", "#72ef95", "#cdda6f", "#d9d5c0", "#a2eb81", "#72f3cc", "#91efe6", "#fed284", "#a6edf6", "#4bfee0", "#9bfb4f", "#c1f3f6", "#e0f9ab", "#d4ffd2", "#fffac1", "#a9c5fd", "#f0acc4", "#7adf34", "#a8d516", "#86dade", "#6cdfd7", "#a7d5b9", "#b4d899", "#f1c0bf", "#a9e8c7", "#e6e04c", "#fcd4bf", "#67feb6", "#ddfeee", "#f5af92", "#a7cddc", "#c7cae9", "#e1c2c9", "#06f6a4", "#64f36c", "#ffd056", "#e9d3ea", "#94f595", "#eadbcc", "#acf2b2", "#a2fde0", "#f5e5c6", "#f7eb67", "#f1e9e6", "#e2efdb", "#fbfd52", "#aacac8", "#6fdf6e", "#23e83d", "#d6c33e", "#edbb66", "#96d8f1", "#d9c9a7", "#30ef8c", "#66ed41", "#eabeed", "#c3dbce", "#d6d6e9", "#f8c6ee", "#d5d9d1", "#96f0cc", "#c7ef56", "#8ef6ff", "#aff0e8", "#b7f593", "#dee7e0", "#bdff5c", "#eff01a", "#d7f0fe", "#bdfdc3", "#f0ef9c", "#d3fe14", "#bec0ea", "#c6c2be", "#eab1b3",
White background colors
function constraint(jab) {
let d = jab_dist(d3.jab("white"), jab);
return d > 48 && d < 60;
}
"#525c72", "#21ce03", "#fe3302", "#fa46ff", "#876d0d", "#a24568", "#159bfc", "#14926d", "#9149f8", "#fd5a93", "#85706a", "#ad4d1e", "#4a8b00", "#a96bb1", "#04859b", "#4d6643", "#e2770f", "#4567c6", "#d517a9", "#76527b", "#c310f3", "#d5324b", "#7c78a9", "#657b79", "#7d80fd", "#949401", "#b46965", "#017065", "#6f864d", "#805432", "#12ad4b", "#b86dfd", "#b0743b", "#c66495", "#eb6555", "#5c5c59", "#0e7b3a", "#7b5057", "#5785b7", "#a14297", "#986782", "#884eaf", "#ff3fc6", "#296b97", "#5e700c", "#e6147f", "#635b98", "#746b7b", "#6fa914", "#756c44", "#af830a", "#d85311", "#d25ac2", "#994d45", "#62768b", "#476263", "#7369ce", "#ff3d60", "#985b0b", "#2e7cfe", "#13938d", "#966ec9", "#d85d73", "#537f60", "#45934d", "#fe6001", "#166d7a", "#886996", "#c55345", "#cd5aeb", "#db07dc", "#9a674c", "#c1387f", "#719433", "#cd6c42", "#666f60", "#586d9d", "#067bca", "#bb6005", "#675665", "#aa4cbe", "#2b6f4d", "#5e66fb", "#a341e1", "#927941", "#1295ca", "#996efb", "#675942", "#b24250", "#dd3a2a", "#894b70", "#7c8011", "#407d7e", "#946064", "#df4aa2", "#7182cd", "#635879", "#60642a", "#4e763b", "#21b10b", "#a85587", "#b65c74", "#7a5d20", "#606971", "
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