Turquoise Pearl
#89f5e3
A cyan that is muted. It is very light — it works as a page background, not as text.
Hex
#89f5e3
RGB
137, 245, 227
OKLCh
90.0% 0.104 181.9°
CIELAB (D50)
89.7, -35.9, -1.6
What is true of this colour, and of no other
- No other named colour in the set is within ΔE00 2 of it — it stands alone.
- It uses 67% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 14.4; on black, Lc -89.4. 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 22.6 and 25.1 and 30.0 — no red cone.
Text on this colour
White text
1.29:1 — fails AA
Black text
16.23:1 — passes AA
Black text is the better of the two at16.23:1. That is enough for body text.
As text on white, it needs to change
#008677 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.
The same colour, with one cone missing
As you see it
#89f5e3
protanopia
#ecece3 · ΔE00 22.6
deuteranopia
#dcdce5 · ΔE00 25.1
tritanopia
#c9c9ff · ΔE00 30.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDefence Matrix at ΔE00 2.224: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- Defence MatrixΔE00 2.224 · #88ffee
- Tiffany BlueΔE00 2.258 · #7bf2da
- Hello WinterΔE00 2.403 · #99ffee
- Blister PearlΔE00 3.872 · #aaffee
- Turquoise ChalkΔE00 4.043 · #6fe7db
- Blue Crystal LandscapeΔE00 4.423 · #6febe3
- Oasis StreamΔE00 4.633 · #a2ebd8
- Sea FoamΔE00 4.689 · #87e0cf
- Icy LifeΔE00 4.743 · #55ffee
- NeverlandΔE00 4.926 · #9ce5d6
- Tibetan PlateauΔE00 4.955 · #88ffdd
- Pale King’s BlueΔE00 5.227 · #abf5ed
8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.