Neptune Green

#7fbb9e

A green that is nearly neutral — the hue shows only against a true grey. It is light — black text sits on it comfortably, white text does not.

Hex

#7fbb9e

RGB

127, 187, 158

OKLCh

74.3% 0.075 162.9°

CIELAB (D50)

71.2, -24.9, 8.3

What is true of this colour, and of no other

  • 5 other named colours sit within ΔE00 2 of it.
  • It uses 47% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 43.4; on black, Lc -58.7. 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 17.0 and 17.9 and 36.0 — no red cone.

Text on this colour

White text

2.21:1 — fails AA

Black text

9.50:1 — passes AA

Black text is the better of the two at9.50:1. That is enough for body text.

As text on white, it needs to change

#478267 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#7fbb9e

protanopia

#b6b69e · ΔE00 17.0

deuteranopia

#acac9f · ΔE00 17.9

tritanopia

#a1a1ff · ΔE00 36.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFroggy Pond at ΔE00 0.382: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Froggy PondΔE00 0.382 · #7fba9e
  • Water GreenΔE00 1.25 · #81b89a
  • Baby CakeΔE00 1.478 · #87bea3
  • Grand GustoΔE00 1.485 · #86bb9d
  • Celadon PorcelainΔE00 1.813 · #7ebea5
  • Mountain Lake GreenΔE00 2.193 · #75b996
  • Lark GreenΔE00 2.35 · #8ac1a1
  • PaduaΔE00 2.586 · #7eb394
  • SummertownΔE00 2.608 · #8cbc9e
  • Gauss Blaster GreenΔE00 2.654 · #84c3aa
  • ArboretumΔE00 2.677 · #70ba9f
  • Garden ViewΔE00 2.7 · #89b89a

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