Ivy
#277b74
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
#277b74
RGB
39, 123, 116
OKLCh
53.1% 0.080 187.2°
CIELAB (D50)
46.6, -27.2, -3.9
What is true of this colour, and of no other
- 7 other named colours sit within ΔE00 2 of it.
- It uses 86% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 74.5; on black, Lc -27.2. 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 20.9 and 23.5 and 33.6 — no red cone.
Text on this colour
White text
5.03:1 — passes AA
Black text
4.17:1 — large text only
White text is the better of the two at5.03:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#277b74
protanopia
#757574 · ΔE00 20.9
deuteranopia
#6b6b75 · ΔE00 23.5
tritanopia
#5d5ddb · ΔE00 33.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isElm at ΔE00 0.864: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- ElmΔE00 0.864 · #297b76
- Geneva GreenΔE00 1.711 · #1f7f76
- Myrtle GreenΔE00 1.745 · #317873
- Zirconia TealΔE00 1.832 · #2c7c79
- Romantic IsleΔE00 1.938 · #007c75
- Emperor JadeΔE00 1.952 · #007b75
- Wizards OrbΔE00 1.957 · #007c76
- Hydra TurquoiseΔE00 2.003 · #007a73
- Coelia GreenshadeΔE00 2.013 · #0e7f78
- Iguaçuense WaterfallΔE00 2.115 · #2e776d
- Elegant SilkΔE00 2.126 · #217f74
- Autumn Pine GreenΔE00 2.137 · #158078
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.