Opal Green
#157954
A green that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#157954
RGB
21, 121, 84
OKLCh
51.2% 0.105 162.2°
CIELAB (D50)
44.8, -35.7, 12.2
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 94% 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 76.4; on black, Lc -25.3. 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 19.5 and 20.0 and 42.7 — no red cone.
Text on this colour
White text
5.39:1 — passes AA
Black text
3.89:1 — large text only
White text is the better of the two at5.39:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#157954
protanopia
#737354 · ΔE00 19.5
deuteranopia
#686856 · ΔE00 20.0
tritanopia
#5959d2 · ΔE00 42.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPoplar Forest at ΔE00 0.288: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Poplar ForestΔE00 0.288 · #137953
- Greasy GreensΔE00 1.112 · #117755
- Victoria PeakΔE00 1.474 · #007755
- Sharp GreenΔE00 1.619 · #007d58
- Ivy LeagueΔE00 1.637 · #007958
- Green VelvetΔE00 1.978 · #127453
- Irish BeautyΔE00 2.208 · #007f59
- Gnarls GreenΔE00 2.223 · #00754b
- Lush MeadowΔE00 2.38 · #007351
- Spanish ViridianΔE00 2.501 · #007f5c
- SalemΔE00 2.551 · #177b4d
- Canadian PineΔE00 2.706 · #2e7b52
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.