Emerald Whispers
#2b8478
A cyan that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#2b8478
RGB
43, 132, 120
OKLCh
55.8% 0.085 182.5°
CIELAB (D50)
49.8, -29.5, -1.6
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses 85% 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 70.9; on black, Lc -30.8. 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 21.2 and 23.5 and 35.7 — no red cone.
Text on this colour
White text
4.49:1 — large text only
Black text
4.67:1 — passes AA
Black text is the better of the two at4.67:1. That is enough for body text.
As text on white, it needs to change
#2b8478 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.
The same colour, with one cone missing
As you see it
#2b8478
protanopia
#7e7e78 · ΔE00 21.2
deuteranopia
#737379 · ΔE00 23.5
tritanopia
#6565e8 · ΔE00 35.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCeladon Green at ΔE00 1.634: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Celadon GreenΔE00 1.634 · #2f847c
- Palm Springs SplashΔE00 1.711 · #20887a
- Copper Mineral GreenΔE00 1.959 · #398174
- Elegant SilkΔE00 2.029 · #217f74
- Green InkΔE00 2.036 · #11887b
- Apatite BlueΔE00 2.145 · #31827b
- Mystic TurquoiseΔE00 2.209 · #00877b
- Geneva GreenΔE00 2.315 · #1f7f76
- Copper TurquoiseΔE00 2.356 · #38887f
- Egyptian GreenΔE00 2.42 · #08847c
- Ornamental TurquoiseΔE00 2.435 · #00867d
- Green GarlandsΔE00 2.459 · #008176
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.