Loch Ness

#5f6db0

A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.

Hex

#5f6db0

RGB

95, 109, 176

OKLCh

55.3% 0.105 273.5°

CIELAB (D50)

47.2, 8.6, -37.9

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 43% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 73.7; on black, Lc -28.0. 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.
  • All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.

Text on this colour

White text

4.88:1 — passes AA

Black text

4.30:1 — large text only

White text is the better of the two at4.88:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#5f6db0

protanopia

#6c6cb0 · ΔE00 3.8

deuteranopia

#6969b0 · ΔE00 3.6

tritanopia

#6666c4 · ΔE00 3.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGladiola Blue at ΔE00 1.405: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Gladiola BlueΔE00 1.405 · #6370b6
  • Chetwode BlueΔE00 1.721 · #666fb4
  • DormitoryΔE00 1.836 · #5d71a9
  • Evening LagoonΔE00 2.065 · #5868ae
  • Twinkle NightΔE00 2.148 · #636ca8
  • Wild PansyΔE00 2.185 · #6373b4
  • Chalcedony VioletΔE00 2.294 · #6770ae
  • King’s RobeΔE00 2.528 · #6274ab
  • BellflowerΔE00 2.643 · #5d66aa
  • Splendour and PrideΔE00 2.694 · #5870a4
  • Amparo BlueΔE00 2.698 · #556cb5
  • MediaevalΔE00 2.852 · #696db0

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