Treetop
#91b6ac
A cyan 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
#91b6ac
RGB
145, 182, 172
OKLCh
74.6% 0.043 176.8°
CIELAB (D50)
71.1, -14.5, 0.8
What is true of this colour, and of no other
- One other named colour sits within ΔE00 2 of it.
- It uses only 31% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
- As text on white it measures APCA Lc 43.6; on black, Lc -58.6. 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 13.8 and 14.7 and 28.1 — no red cone.
Text on this colour
White text
2.21:1 — fails AA
Black text
9.49:1 — passes AA
Black text is the better of the two at9.49:1. That is enough for body text.
As text on white, it needs to change
#5a7e75 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
#91b6ac
protanopia
#b2b2ac · ΔE00 13.8
deuteranopia
#acacad · ΔE00 14.7
tritanopia
#a5a5fb · ΔE00 28.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSilicate Green at ΔE00 1.93: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Silicate GreenΔE00 1.93 · #88b2a9
- Carnival GlassΔE00 2.23 · #98beb5
- Spring StreamΔE00 2.26 · #98beb2
- Sea NymphΔE00 2.261 · #8aaea4
- Coveted BlueΔE00 2.278 · #9bbdb2
- Teal TreeΔE00 2.282 · #94b9b4
- Vintage VesselΔE00 2.295 · #94b2a6
- DonnegalΔE00 2.34 · #8caea3
- MoncurΔE00 2.359 · #9bb9ae
- LongfellowΔE00 2.374 · #90b1a3
- Chrysopal Light GreenΔE00 2.375 · #8fb2a3
- Ninja TurtleΔE00 2.536 · #94b1a9
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.