Mallard
#254855
A cyan that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.
Hex
#254855
RGB
37, 72, 85
OKLCh
38.1% 0.046 224.3°
CIELAB (D50)
28.4, -10.0, -11.9
What is true of this colour, and of no other
- 5 other named colours sit within ΔE00 2 of it.
- It uses 64% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 92.7; on black, Lc -9.8. 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 14.8 and 15.8 and 15.3 — no red cone.
Text on this colour
White text
9.83:1 — passes AA
Black text
2.14:1 — fails AA
White text is the better of the two at9.83:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#254855
protanopia
#454555 · ΔE00 14.8
deuteranopia
#404055 · ΔE00 15.8
tritanopia
#3a3a84 · ΔE00 15.3
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRainstorm at ΔE00 0.669: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- RainstormΔE00 0.669 · #244653
- Night SwimΔE00 0.759 · #254a57
- Moscow MidnightΔE00 1.245 · #204652
- Berry Blue GreenΔE00 1.584 · #264b56
- Deep Sea BlueΔE00 1.659 · #2a4b5a
- Blue SyzygyΔE00 2.065 · #1b4556
- Winter WavesΔE00 2.084 · #21424d
- Rugged TealΔE00 2.171 · #254e5d
- Ethereal DanceΔE00 2.218 · #1a4a5a
- Celtic RushΔE00 2.453 · #2e4c5b
- Green VogueΔE00 2.477 · #23414e
- SeaworthyΔE00 2.512 · #314d58
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.