Botanical Night

#12403c

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

#12403c

RGB

18, 64, 60

OKLCh

33.9% 0.050 187.0°

CIELAB (D50)

23.9, -17.0, -2.4

What is true of this colour, and of no other

  • No other named colour in the set is within ΔE00 2 of it — it stands alone.
  • It uses 84% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 96.3; 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 16.1 and 17.7 and 27.2 — no red cone.

Text on this colour

White text

11.51:1 — passes AA

Black text

1.82:1 — fails AA

White text is the better of the two at11.51:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#12403c

protanopia

#3d3d3c · ΔE00 16.1

deuteranopia

#37373d · ΔE00 17.7

tritanopia

#2f2f76 · ΔE00 27.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlack Soap at ΔE00 2.288: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

  • Black SoapΔE00 2.288 · #19443c
  • RaptureΔE00 2.397 · #114444
  • TiberΔE00 2.464 · #184343
  • Rich BlackΔE00 2.483 · #004040
  • CyprusΔE00 2.543 · #0f4645
  • Warm BlackΔE00 2.654 · #004242
  • Night TurquoiseΔE00 2.911 · #003833
  • Dark SideΔE00 2.952 · #004444
  • Prestige GreenΔE00 3.182 · #154647
  • MSU GreenΔE00 3.189 · #18453b
  • Pine HollowΔE00 3.531 · #204242
  • Customs GreenΔE00 3.542 · #003839

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