Grey Web
#616669
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
#616669
RGB
97, 102, 105
OKLCh
50.7% 0.008 233.8°
CIELAB (D50)
42.8, -1.5, -2.4
What is true of this colour, and of no other
- 9 other named colours sit within ΔE00 2 of it.
- It uses only 7% 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 79.1; on black, Lc -22.7. 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.
- tritanopia shifts it by ΔE00 8.6 — no blue cone.
Text on this colour
White text
5.81:1 — passes AA
Black text
3.61:1 — large text only
White text is the better of the two at5.81:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#616669
protanopia
#656569 · ΔE00 3.0
deuteranopia
#656569 · ΔE00 3.2
tritanopia
#646476 · ΔE00 8.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isThames Dusk at ΔE00 0.375: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Thames DuskΔE00 0.375 · #62676a
- Shuttle GreyΔE00 1.118 · #61666b
- Stone HearthΔE00 1.354 · #636869
- Carriage WheelΔE00 1.358 · #5d6367
- EquinoxΔE00 1.605 · #62696b
- Night OutΔE00 1.632 · #656a6e
- Midnight GreyΔE00 1.687 · #666a6d
- Binary StarΔE00 1.932 · #616767
- Pointed RockΔE00 1.936 · #646767
- CorditeΔE00 2.339 · #616665
- Roycroft PewterΔE00 2.34 · #616564
- GibraltarΔE00 2.396 · #626970
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.