Night Watch
#3c4f4e
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
#3c4f4e
RGB
60, 79, 78
OKLCh
41.1% 0.024 192.3°
CIELAB (D50)
32.0, -7.9, -2.0
What is true of this colour, and of no other
- One other named colour sits within ΔE00 2 of it.
- It uses only 34% 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 89.8; on black, Lc -12.5. 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 9.6 and 10.4 and 21.0 — no red cone.
Text on this colour
White text
8.68:1 — passes AA
Black text
2.42:1 — fails AA
White text is the better of the two at8.68:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#3c4f4e
protanopia
#4d4d4e · ΔE00 9.6
deuteranopia
#4a4a4e · ΔE00 10.4
tritanopia
#464674 · ΔE00 21.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDark Reaper at ΔE00 1.18: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Dark ReaperΔE00 1.18 · #3b5150
- ThermalΔE00 2.075 · #3f5052
- Heavy Black GreenΔE00 2.305 · #3a514d
- Green GablesΔE00 2.311 · #364847
- Gedney GreenΔE00 2.49 · #40534e
- Black GreenΔE00 2.603 · #384e49
- All NighterΔE00 2.697 · #455454
- Sycamore TreeΔE00 2.748 · #3f544f
- CorduroyΔE00 2.822 · #404d49
- Black EvergreenΔE00 2.923 · #45524f
- Graphite Black GreenΔE00 2.93 · #32494b
- Deepest RiverΔE00 2.997 · #44534e
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.