After the Storm
#33616a
A cyan that is nearly neutral — the hue shows only against a true grey. It is mid — the hardest range to put text on, either colour struggles.
Hex
#33616a
RGB
51, 97, 106
OKLCh
46.4% 0.052 211.7°
CIELAB (D50)
38.2, -14.4, -10.3
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- It uses 65% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 83.6; on black, Lc -18.3. 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 17.4 and 18.6 and 20.7 — no red cone.
Text on this colour
White text
6.87:1 — passes AA
Black text
3.06:1 — large text only
White text is the better of the two at6.87:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#33616a
protanopia
#5d5d6a · ΔE00 17.4
deuteranopia
#57576b · ΔE00 18.6
tritanopia
#4e4eaa · ΔE00 20.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPedigree at ΔE00 1.237: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- PedigreeΔE00 1.237 · #31646e
- MediterraneaΔE00 1.293 · #39636a
- Deep Sea DiveΔE00 1.358 · #376167
- Smock BlueΔE00 1.583 · #3b646c
- Arctic NightsΔE00 2.445 · #345c61
- China Green BlueΔE00 2.494 · #3a6468
- Mordant BlueΔE00 2.523 · #2a6671
- ExcellenceΔE00 2.667 · #22606e
- Petro BlueΔE00 2.74 · #2f5961
- Night ShiftΔE00 2.753 · #2a5c6a
- FreedomΔE00 2.783 · #3b5e68
- Deep MarineΔE00 2.824 · #2e6469
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.