透明度对应16进度值如下:
透明度 |
16进制值 |
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 |
透明度百分比计算方法
public void rgba() throws Exception {
System.out.println("透明度 | 十六进制值");
System.out.println("---- | ----");
for (double i = 1; i >= 0; i -= 0.01) {
i = Math.round(i * 100) / 100.0d;
int alpha = (int) Math.round(i * 255);
String hex = Integer.toHexString(alpha).toUpperCase();
if (hex.length() == 1) hex = "0" + hex;
int percent = (int) (i * 100);
System.out.println(String.format("%d%% | %s", percent, hex));
}
}