Color Range Test
Full-range displays keep every incremental patch separated. Limited HDMI / TV-range stacks merge the darkest and brightest ladders into solids.
Rows mirror keyboardtester.click: near-black 0→31 plus near-white 223→254, plus continuous ramp 0→255 for curve visualization.
Near-black (RGB 0-31)
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Near-white (RGB 223-254)
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
Continuous ramp (0 → 255)
How to use
- After GPU driver toggles rerun each mode— deltas should widen once both ends agree on FULL.
FAQ
Does streaming affect this page?
Cloud streaming can inject transcoding tonal compression independent of HDMI handshake—isolate variables.
Overview
Implements condensed reproduction of authoritative color-range article patterns so desktop technicians triage consoles + laptops uniformly.