Onyx
#464544
A neutral that has no useful hue — it reads as a grey. It is dark — it carries white text and needs care with black.
Hex
#464544
RGB
70, 69, 68
OKLCh
39.1% 0.002 67.8°
CIELAB (D50)
29.4, 0.3, 0.8
What is true of this colour, and of no other
- 15 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
- It uses almost none of the chroma available here: this is a grey with a trace of hue rather than a colour.
- As text on white it measures APCA Lc 92.2; on black, Lc -10.2. 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
9.57:1 — passes AA
Black text
2.20:1 — fails AA
White text is the better of the two at9.57:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#464544
protanopia
#454544 · ΔE00 0.7
deuteranopia
#454544 · ΔE00 0.7
tritanopia
#454541 · ΔE00 2.4
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRavenwood at ΔE00 0.631: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- RavenwoodΔE00 0.631 · #464543
- Medium BlackΔE00 0.78 · #444443
- Machine Gun MetalΔE00 0.848 · #454545
- Wood CharcoalΔE00 0.892 · #464646
- Goshawk GreyΔE00 0.932 · #444444
- Black SuedeΔE00 0.997 · #434342
- Evening CanyonΔE00 1.032 · #454341
- Pig IronΔE00 1.275 · #484848
- Greenish BlackΔE00 1.323 · #454445
- Black PantherΔE00 1.353 · #424242
- Black TieΔE00 1.386 · #464647
- Balsamic ReductionΔE00 1.694 · #434340
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.