All Nighter
#455454
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
#455454
RGB
69, 84, 84
OKLCh
43.3% 0.019 196.5°
CIELAB (D50)
34.4, -6.1, -2.1
What is true of this colour, and of no other
- 5 other named colours sit within ΔE00 2 of it.
- It uses only 25% 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 87.5; on black, Lc -14.6. 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.
- protanopia and deuteranopia and tritanopia shift it by ΔE00 8.0 and 8.6 and 18.8 — no red cone.
Text on this colour
White text
7.93:1 — passes AA
Black text
2.65:1 — fails AA
White text is the better of the two at7.93:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#455454
protanopia
#525254 · ΔE00 8.0
deuteranopia
#505054 · ΔE00 8.6
tritanopia
#4d4d75 · ΔE00 18.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDark Slate at ΔE00 0.97: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Dark SlateΔE00 0.97 · #465352
- Slate CourtΔE00 1.578 · #465355
- Black EvergreenΔE00 1.894 · #45524f
- Sabionando GreyΔE00 1.925 · #455859
- ThermalΔE00 1.925 · #3f5052
- Lunar EclipseΔE00 2.149 · #415053
- Asagi KoiΔE00 2.223 · #455559
- FinneganΔE00 2.235 · #425357
- Evergreen FieldΔE00 2.47 · #47534f
- Midnight in NYΔE00 2.665 · #4e5a59
- Night WatchΔE00 2.697 · #3c4f4e
- Dark as NightΔE00 2.722 · #495252
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.