Deep Sea Nightmare
#002366
A blue that is muted. It is dark — it carries white text and needs care with black.
Hex
#002366
RGB
0, 35, 102
OKLCh
28.5% 0.124 261.1°
CIELAB (D50)
15.5, 13.0, -43.4
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 100.8; on black, Lc 0.0. 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 5.1 and 5.2 and 6.4 — no red cone.
Text on this colour
White text
14.66:1 — passes AA
Black text
1.43:1 — fails AA
White text is the better of the two at14.66:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#002366
protanopia
#212166 · ΔE00 5.1
deuteranopia
#1c1c66 · ΔE00 5.2
tritanopia
#171777 · ΔE00 6.4
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMidnight Melancholia at ΔE00 0.365: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Midnight MelancholiaΔE00 0.365 · #002266
- Deep SapphireΔE00 0.691 · #082466
- Black Sea NightΔE00 0.743 · #052462
- Dark SapphireΔE00 0.745 · #082567
- Abyssal DepthsΔE00 1.678 · #10246a
- Old Glory BlueΔE00 1.765 · #002868
- Pure MidnightΔE00 2.058 · #112266
- ClarinetΔE00 2.46 · #002255
- DownriverΔE00 2.474 · #092256
- Midnight CrestΔE00 2.596 · #112473
- Long-Haul FlightΔE00 2.623 · #002277
- Blue LeviathanΔE00 2.669 · #032a62
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.