1. 透明度对比16进制数值
透明度对比16进制数值
100% — FF
99% — FC
98% — FA
97% — F7
96% — F5
95% — F2
94% — F0
93% — ED
92% — EB
91% — E8
90% — E6
89% — E3
88% — E0
87% — DE
86% — DB
85% — D9
84% — D6
83% — D4
82% — D1
81% — CF
80% — CC
79% — C9
78% — C7
77% — C4
76% — C2
75% — BF
74% — BD
73% — BA
72% — B8
71% — B5
70% — B3
69% — B0
68% — AD
67% — AB
66% — A8
65% — A6
64% — A3
63% — A1
62% — 9E
61% — 9C
60% — 99
59% — 96
58% — 94
57% — 91
56% — 8F
55% — 8C
54% — 8A
53% — 87
52% — 85
51% — 82
50% — 80
49% — 7D
48% — 7A
47% — 78
46% — 75
45% — 73
44% — 70
43% — 6E
42% — 6B
41% — 69
40% — 66
39% — 63
38% — 61
37% — 5E
36% — 5C
35% — 59
34% — 57
33% — 54
32% — 52
31% — 4F
30% — 4D
29% — 4A
28% — 47
27% — 45
26% — 42
25% — 40
24% — 3D
23% — 3B
22% — 38
21% — 36
20% — 33
19% — 30
18% — 2E
17% — 2B
16% — 29
15% — 26
14% — 24
13% — 21
12% — 1F
11% — 1C
10% — 1A
9% — 17
8% — 14
7% — 12
6% — 0F
5% — 0D
4% — 0A
3% — 08
2% — 05
1% — 03
0% — 00
2. 转换规则：在将透明度转换为 RGBA 中的 alpha 值时，需要将其乘以 255 并取整，然后将结果转换为十六进制并进行填充，以确保 alpha 值始终是两个字符。
function opacityToHex(opacity) {
const alpha = Math.round(opacity * 255);
return alpha.toString(16).padStart(2, '0');
}
// Examples
console.log(opacityToHex(0)); // "00"
console.log(opacityToHex(0.01)); // "03"
console.log(opacityToHex(0.1)); // "1a"
console.log(opacityToHex(0.2)); // "33"
console.log(opacityToHex(1)); // "ff"标签：转换,log,16,透明度,console,opacityToHex,alpha From： https://www.cnblogs.com/zhuyuesen/p/17388532.html