Fifty Shades of Greyscale
Browser and Display Greyscale Test Page

Test the greyscale rendering of your browser and display

The below table contains a 16×16 array of boxes displaying all 256 possible 8-bit greyscale values, from black in the box labeled 00 to white in the box labeled ff.

For example, the box labeled 3c has color #3c3c3c meaning that red, green, and blue are all set to 0x3c of a possible 0xff or 60 of 255 in base 10. Put another way, 0x3c out of 0xff is 23.53% of the way from black to white.

How many distinct shades of grey can you see on this page? That will depend on your monitor and your vision.

Obama Is Black!  RGB = #000000!
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _a _b _c _d _e _f
0_ 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 0_
1_ 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 1_
2_ 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 1_
3_ 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 3_
4_ 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 4_
5_ 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 5_
6_ 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 6_
7_ 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 7_
8_ 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 8_
9_ 90 91 92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f 9_
a_ a0 a1 a2 a3 a4 a5 a6 a7 a8 a9 aa ab ac ad ae af a_
b_ b0 b1 b2 b3 b4 b5 b6 b7 b8 b9 ba bb bc bd be bf b_
c_ c0 c1 c2 c3 c4 c5 c6 c7 c8 c9 ca cb cc cd ce cf c_
d_ d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 da db dc dd de df d_
e_ e0 e1 e2 e3 e4 e5 e6 e7 e8 e9 ea eb ec ed ee ef e_
f_ f0 f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb fc fd ff ff f_
_0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _a _b _c _d _e _f

Below are some greyscale test bars with different numbers of grey levels.

Grey level test bars

8 levels

black
00 20 40 60 80 a0 c0 e0
white

16 levels

black
00 10 20 30 40 50 60 70 80 90 a0 b0 c0 d0 e0 f0
white

32 levels

black
00 08 10 18 20 28 30 38 40 48 50 58 60 68 70 78 80 88 90 98 a0 a8 b0 b8 c0 c8 d0 d8 e0 e8 f0 f8
white

64 levels

black
0 0 0 4 0 8 0 c 1 0 1 4 1 8 1 c 2 0 2 4 2 8 2 c 3 0 3 4 3 8 3 c 4 0 4 4 4 8 4 c 5 0 5 4 5 8 5 c 6 0 6 4 6 8 6 c 7 0 7 4 7 8 7 c 8 0 8 4 8 8 8 c 9 0 9 4 9 8 9 c a 0 a 4 a 8 a c b 0 b 4 b 8 b c c 0 c 4 c 8 c c d 0 d 4 d 8 d c e 0 e 4 e 8 e c f 0 f 4 f 8 f c
white
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