Tropical Escape
#4dbbaf
A cyan that is muted. It is light — black text sits on it comfortably, white text does not.
Hex
#4dbbaf
RGB
77, 187, 175
OKLCh
72.5% 0.102 185.4°
CIELAB (D50)
69.4, -34.9, -3.8
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 80% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 45.5; on black, Lc -56.6. 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 22.8 and 25.5 and 34.4 — no red cone.
Text on this colour
White text
2.32:1 — fails AA
Black text
9.04:1 — passes AA
Black text is the better of the two at9.04:1. That is enough for body text.
As text on white, it needs to change
#00857b 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
#4dbbaf
protanopia
#b3b3af · ΔE00 22.8
deuteranopia
#a4a4b1 · ΔE00 25.5
tritanopia
#9292ff · ΔE00 34.4
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isArctic Green at ΔE00 1.304: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Arctic GreenΔE00 1.304 · #45bcb3
- Magnetic MagicΔE00 1.509 · #3fbbb2
- Tint of TurquoiseΔE00 1.637 · #41bfb5
- Treasured TealΔE00 1.72 · #52c1b3
- Emerald BlissΔE00 1.768 · #4cbdac
- Green FluoriteΔE00 1.973 · #55bbaa
- Message GreenΔE00 2.025 · #37b8af
- Hygiene GreenΔE00 2.095 · #5dbcb4
- Green GrappleΔE00 2.169 · #3db9b2
- Emerald WaveΔE00 2.274 · #4fb3a9
- Sacred TurquoiseΔE00 2.401 · #49b3a5
- SynergyΔE00 2.64 · #48c2b0
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.