Volcanic Rock
#6b6965
A neutral that has no useful hue — it reads as a grey. It is mid — the hardest range to put text on, either colour struggles.
Hex
#6b6965
RGB
107, 105, 101
OKLCh
52.1% 0.007 84.6°
CIELAB (D50)
44.5, 0.2, 2.5
What is true of this colour, and of no other
- 7 other named colours sit within ΔE00 2 of it.
- It uses only 6% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
- As text on white it measures APCA Lc 77.4; on black, Lc -24.4. The sign is the polarity, which the WCAG ratio discards.
- Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
- All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.
Text on this colour
White text
5.48:1 — passes AA
Black text
3.83:1 — large text only
White text is the better of the two at5.48:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#6b6965
protanopia
#696965 · ΔE00 1.3
deuteranopia
#6a6a65 · ΔE00 1.3
tritanopia
#6a6a5e · ΔE00 4.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isStorm Warning at ΔE00 1.017: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Storm WarningΔE00 1.017 · #696863
- Wire WoolΔE00 1.366 · #676662
- Mined CoalΔE00 1.466 · #6c6b65
- Not so InnocentΔE00 1.719 · #6a6968
- Architecture GreyΔE00 1.757 · #6b6a69
- Boat AnchorΔE00 1.876 · #6c6b6a
- Iron-icΔE00 1.895 · #6a6b67
- Trail PrintΔE00 2.001 · #6b6662
- ArmouryΔE00 2.285 · #6a6b65
- HomebushΔE00 2.399 · #726e69
- Gibraltar GreyΔE00 2.4 · #6f6a68
- Shadow GargoyleΔE00 2.423 · #686767
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.