/// @access private
///
/// Precomputed linear color channel values, for use in contrast calculations.
/// See https://www.w3.org/TR/WCAG20-TECHS/G17.html#G17-tests
///
/// Algorithm, for c in 0 to 255:
/// f(c) {
///   c = c / 255;
///   return c < 0.03928 ? c / 12.92 : Math.pow((c + 0.055) / 1.055, 2.4);
/// }
///
/// This lookup table is needed since there is no `pow` in SASS.
$linear-channel-values: (
	0,
	0.0003035269835488375,
	0.000607053967097675,
	0.0009105809506465125,
	0.00121410793419535,
	0.0015176349177441874,
	0.001821161901293025,
	0.0021246888848418626,
	0.0024282158683907,
	0.0027317428519395373,
	0.003035269835488375,
	0.003346535763899161,
	0.003676507324047436,
	0.004024717018496307,
	0.004391442037410293,
	0.004776953480693729,
	0.005181516702338386,
	0.005605391624202723,
	0.006048833022857054,
	0.006512090792594475,
	0.006995410187265387,
	0.007499032043226175,
	0.008023192985384994,
	0.008568125618069307,
	0.009134058702220787,
	0.00972121732023785,
	0.010329823029626936,
	0.010960094006488246,
	0.011612245179743885,
	0.012286488356915872,
	0.012983032342173012,
	0.013702083047289686,
	0.014443843596092545,
	0.01520851442291271,
	0.01599629336550963,
	0.016807375752887384,
	0.017641954488384078,
	0.018500220128379697,
	0.019382360956935723,
	0.0202885630566524,
	0.021219010376003555,
	0.022173884793387385,
	0.02315336617811041,
	0.024157632448504756,
	0.02518685962736163,
	0.026241221894849898,
	0.027320891639074894,
	0.028426039504420793,
	0.0295568344378088,
	0.030713443732993635,
	0.03189603307301153,
	0.033104766570885055,
	0.03433980680868217,
	0.03560131487502034,
	0.03688945040110004,
	0.0382043715953465,
	0.03954623527673284,
	0.04091519690685319,
	0.042311410620809675,
	0.043735029256973465,
	0.04518620438567554,
	0.046665086336880095,
	0.04817182422688942,
	0.04970656598412723,
	0.05126945837404324,
	0.052860647023180246,
	0.05448027644244237,
	0.05612849004960009,
	0.05780543019106723,
	0.0595112381629812,
	0.06124605423161761,
	0.06301001765316767,
	0.06480326669290577,
	0.06662593864377289,
	0.06847816984440017,
	0.07036009569659588,
	0.07227185068231748,
	0.07421356838014963,
	0.07618538148130785,
	0.07818742180518633,
	0.08021982031446832,
	0.0822827071298148,
	0.08437621154414882,
	0.08650046203654976,
	0.08865558628577294,
	0.09084171118340768,
	0.09305896284668745,
	0.0953074666309647,
	0.09758734714186246,
	0.09989872824711389,
	0.10224173308810132,
	0.10461648409110419,
	0.10702310297826761,
	0.10946171077829933,
	0.1119324278369056,
	0.11443537382697373,
	0.11697066775851084,
	0.11953842798834562,
	0.12213877222960187,
	0.12477181756095049,
	0.12743768043564743,
	0.1301364766903643,
	0.13286832155381798,
	0.13563332965520566,
	0.13843161503245183,
	0.14126329114027164,
	0.14412847085805777,
	0.14702726649759498,
	0.14995978981060856,
	0.15292615199615017,
	0.1559264637078274,
	0.1589608350608804,
	0.162029375639111,
	0.1651321945016676,
	0.16826940018969075,
	0.1714411007328226,
	0.17464740365558504,
	0.17788841598362912,
	0.18116424424986022,
	0.184474994500441,
	0.18782077230067787,
	0.19120168274079138,
	0.1946178304415758,
	0.19806931955994886,
	0.20155625379439707,
	0.20507873639031693,
	0.20863687014525575,
	0.21223075741405523,
	0.21586050011389926,
	0.2195261997292692,
	0.2232279573168085,
	0.22696587351009836,
	0.23074004852434915,
	0.23455058216100522,
	0.238397573812271,
	0.24228112246555486,
	0.24620132670783548,
	0.25015828472995344,
	0.25415209433082675,
	0.2581828529215958,
	0.26225065752969623,
	0.26635560480286247,
	0.2704977910130658,
	0.27467731206038465,
	0.2788942634768104,
	0.2831487404299921,
	0.2874408377269175,
	0.29177064981753587,
	0.2961382707983211,
	0.3005437944157765,
	0.3049873140698863,
	0.30946892281750854,
	0.31398871337571754,
	0.31854677812509186,
	0.32314320911295075,
	0.3277780980565422,
	0.33245153634617935,
	0.33716361504833037,
	0.3419144249086609,
	0.3467040563550296,
	0.35153259950043936,
	0.3564001441459435,
	0.3613067797835095,
	0.3662525955988395,
	0.3712376804741491,
	0.3762621229909065,
	0.38132601143253014,
	0.386429433787049,
	0.39157247774972326,
	0.39675523072562685,
	0.4019777798321958,
	0.4072402119017367,
	0.41254261348390375,
	0.4178850708481375,
	0.4232676699860717,
	0.4286904966139066,
	0.43415363617474895,
	0.4396571738409188,
	0.44520119451622786,
	0.45078578283822346,
	0.45641102318040466,
	0.4620769996544071,
	0.467783796112159,
	0.47353149614800955,
	0.4793201831008268,
	0.4851499400560704,
	0.4910208498478356,
	0.4969329950608704,
	0.5028864580325687,
	0.5088813208549338,
	0.5149176653765214,
	0.5209955732043543,
	0.5271151257058131,
	0.5332764040105052,
	0.5394794890121072,
	0.5457244613701866,
	0.5520114015120001,
	0.5583403896342679,
	0.5647115057049292,
	0.5711248294648731,
	0.5775804404296506,
	0.5840784178911641,
	0.5906188409193369,
	0.5972017883637634,
	0.6038273388553378,
	0.6104955708078648,
	0.6172065624196511,
	0.6239603916750761,
	0.6307571363461468,
	0.6375968739940326,
	0.6444796819705821,
	0.6514056374198242,
	0.6583748172794485,
	0.665387298282272,
	0.6724431569576875,
	0.6795424696330938,
	0.6866853124353135,
	0.6938717612919899,
	0.7011018919329731,
	0.7083757798916868,
	0.7156935005064807,
	0.7230551289219693,
	0.7304607400903537,
	0.7379104087727308,
	0.7454042095403874,
	0.7529422167760779,
	0.7605245046752924,
	0.768151147247507,
	0.7758222183174236,
	0.7835377915261935,
	0.7912979403326302,
	0.799102738014409,
	0.8069522576692516,
	0.8148465722161012,
	0.8227857543962835,
	0.8307698767746546,
	0.83879901174074,
	0.846873231509858,
	0.8549926081242338,
	0.8631572134541023,
	0.8713671191987972,
	0.8796223968878317,
	0.8879231178819663,
	0.8962693533742664,
	0.9046611743911496,
	0.9130986517934192,
	0.9215818562772946,
	0.9301108583754237,
	0.938685728457888,
	0.9473065367331999,
	0.9559733532492861,
	0.9646862478944651,
	0.9734452903984125,
	0.9822505503331171,
	0.9911020971138298,
	1
);