High Dive

#59b9cc

A cyan that is muted. It is light — black text sits on it comfortably, white text does not.

Hex

#59b9cc

RGB

89, 185, 204

OKLCh

73.5% 0.094 212.4°

CIELAB (D50)

69.9, -25.4, -18.8

What is true of this colour, and of no other

  • 14 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses 73% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 44.6; on black, Lc -57.5. 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 23.9 and 23.7 and 25.3 — no red cone.

Text on this colour

White text

2.27:1 — fails AA

Black text

9.24:1 — passes AA

Black text is the better of the two at9.24:1. That is enough for body text.

As text on white, it needs to change

#128295 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

#59b9cc

protanopia

#b1b1cc · ΔE00 23.9

deuteranopia

#a4a4cd · ΔE00 23.7

tritanopia

#9494ff · ΔE00 25.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGlimpse at ΔE00 0.928: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • GlimpseΔE00 0.928 · #4fb9ce
  • Mountain Range BlueΔE00 1.05 · #53b8c9
  • FountainΔE00 1.289 · #56b5ca
  • Liquid BlueΔE00 1.365 · #55b7ce
  • Delusional DragonflyΔE00 1.41 · #66bbcc
  • Water BabyΔE00 1.606 · #5ab5cb
  • Teal MoiréΔE00 1.63 · #50b7cf
  • Blue BobbinΔE00 1.699 · #52b4ca
  • SkydiveΔE00 1.73 · #60bfd3
  • Cave LakeΔE00 1.754 · #52b7c6
  • AqualogicΔE00 1.817 · #57b7c5
  • Blouson BlueΔE00 1.841 · #67b7c6

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