Elf
#1b8a6b
A cyan that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#1b8a6b
RGB
27, 138, 107
OKLCh
56.6% 0.106 168.7°
CIELAB (D50)
51.1, -37.1, 7.7
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 69.3; on black, Lc -32.4. 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 21.8 and 41.9 — no red cone.
Text on this colour
White text
4.29:1 — large text only
Black text
4.89:1 — passes AA
Black text is the better of the two at4.89:1. That is enough for body text.
As text on white, it needs to change
#148668 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
#1b8a6b
protanopia
#83836b · ΔE00 20.9
deuteranopia
#77776d · ΔE00 21.8
tritanopia
#6666f1 · ΔE00 41.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFestive Green at ΔE00 1.064: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Festive GreenΔE00 1.064 · #008c6c
- Carolina GreenΔE00 1.086 · #008b6d
- Indonesian JungleΔE00 1.388 · #008c69
- Celtic QueenΔE00 1.419 · #00886b
- Kabalite GreenΔE00 1.811 · #038c67
- ObservatoryΔE00 1.942 · #008f70
- Industrial TurquoiseΔE00 2.027 · #008a70
- Spectral GreenΔE00 2.045 · #008664
- Sea SwellΔE00 2.119 · #018f6b
- Accent Green BlueΔE00 2.218 · #208468
- Shadows of TimeΔE00 2.447 · #018466
- BosphorusΔE00 2.583 · #008468
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.