Under the Sea

#395d68

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

#395d68

RGB

57, 93, 104

OKLCh

45.6% 0.045 219.3°

CIELAB (D50)

37.1, -11.0, -10.6

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses 55% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 84.7; on black, Lc -17.3. 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 15.1 and 16.2 and 17.1 — no red cone.

Text on this colour

White text

7.14:1 — passes AA

Black text

2.94:1 — fails AA

White text is the better of the two at7.14:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#395d68

protanopia

#5a5a68 · ΔE00 15.1

deuteranopia

#545469 · ΔE00 16.2

tritanopia

#4e4e9f · ΔE00 17.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFreedom at ΔE00 0.579: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • FreedomΔE00 0.579 · #3b5e68
  • Jimbaran BayΔE00 1.813 · #3d5d64
  • Juniper Berry BlueΔE00 1.933 · #3f626e
  • Cadet SongΔE00 1.961 · #3b5964
  • Hypothalamus GreyΔE00 2.056 · #415d66
  • Autumn NightΔE00 2.251 · #3b5861
  • Bermudan BlueΔE00 2.406 · #386171
  • Flowing RiverΔE00 2.462 · #335e6f
  • KingfisherΔE00 2.483 · #3a5760
  • Great VoidΔE00 2.641 · #3b5760
  • Night ShiftΔE00 2.739 · #2a5c6a
  • Blue SpellΔE00 2.779 · #3b5c6c

10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.