Paradise Island

#5aa7a0

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

#5aa7a0

RGB

90, 167, 160

OKLCh

67.7% 0.077 187.9°

CIELAB (D50)

63.4, -26.3, -4.2

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 66% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 53.9; on black, Lc -47.9. 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 20.6 and 23.2 and 32.1 — no red cone.

Text on this colour

White text

2.81:1 — fails AA

Black text

7.47:1 — passes AA

Black text is the better of the two at7.47:1. That is enough for body text.

As text on white, it needs to change

#34837c is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#5aa7a0

protanopia

#a1a1a0 · ΔE00 20.6

deuteranopia

#9696a1 · ΔE00 23.2

tritanopia

#8888ff · ΔE00 32.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDragon Bay at ΔE00 1.303: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Dragon BayΔE00 1.303 · #5da99f
  • VerandaΔE00 1.631 · #61a9a5
  • Aqua RapidsΔE00 1.995 · #63a39c
  • Twilight MeadowΔE00 2.545 · #51a5a4
  • Teal BayouΔE00 2.92 · #57a1a0
  • Emerald SucculentΔE00 2.956 · #55aaaa
  • Tourmaline TurquoiseΔE00 3.01 · #4f9e96
  • Bahaman BlissΔE00 3.11 · #3fa49b
  • Artesian WellΔE00 3.191 · #5eb2aa
  • Turquoise FantasiesΔE00 3.26 · #6dafa7
  • Folk SongΔE00 3.445 · #65a19f
  • Caulerpa LentilliferaΔE00 3.711 · #599c99

10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.