Lagoon
#4b9b93
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
#4b9b93
RGB
75, 155, 147
OKLCh
63.7% 0.080 186.8°
CIELAB (D50)
58.8, -27.2, -3.7
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- It uses 72% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 59.9; on black, Lc -41.8. 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 20.9 and 23.4 and 33.6 — no red cone.
Text on this colour
White text
3.28:1 — large text only
Black text
6.41:1 — passes AA
Black text is the better of the two at6.41:1. That is enough for body text.
As text on white, it needs to change
#31837c 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
#4b9b93
protanopia
#959593 · ΔE00 20.9
deuteranopia
#8a8a94 · ΔE00 23.4
tritanopia
#7c7cff · ΔE00 33.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMajorca Blue at ΔE00 0.545: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Majorca BlueΔE00 0.545 · #4a9c95
- Tourmaline TurquoiseΔE00 1.035 · #4f9e96
- Dreamy TealΔE00 1.712 · #3d9c96
- SeaΔE00 1.731 · #3c9992
- Latigo BayΔE00 2.276 · #3b9c98
- Baltic GreenΔE00 2.376 · #3aa098
- Aqua RevivalΔE00 2.718 · #539f91
- Caulerpa LentilliferaΔE00 2.841 · #599c99
- Martian CeruleanΔE00 2.976 · #57958b
- Petrol GreenΔE00 3.03 · #549b8c
- Temple Guard BlueΔE00 3.032 · #339a8d
- Azure TideΔE00 3.087 · #2b9890
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.