Harem Silk
#006383
A cyan that is muted. It is mid — the hardest range to put text on, either colour struggles.
Hex
#006383
RGB
0, 99, 131
OKLCh
46.7% 0.092 229.1°
CIELAB (D50)
38.4, -16.0, -25.3
What is true of this colour, and of no other
- 9 other named colours sit within ΔE00 2 of it.
- It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 82.7; on black, Lc -19.2. 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 20.2 and 19.5 and 18.5 — no red cone.
Text on this colour
White text
6.75:1 — passes AA
Black text
3.11:1 — large text only
White text is the better of the two at6.75:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#006383
protanopia
#5e5e83 · ΔE00 20.2
deuteranopia
#545484 · ΔE00 19.5
tritanopia
#4747cc · ΔE00 18.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Heist at ΔE00 0.345: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Blue HeistΔE00 0.345 · #006384
- Bowerbird BlueΔE00 0.685 · #006585
- Journey Into NightΔE00 0.795 · #016584
- Blue LeagueΔE00 0.807 · #006284
- Blue SapphireΔE00 1.007 · #126180
- Adriatic SeaΔE00 1.136 · #016081
- Back of BeyondΔE00 1.368 · #015f7f
- Blue VelvetΔE00 1.37 · #0d6183
- Blue EdgeΔE00 1.858 · #035e7b
- Blue-CollarΔE00 2.11 · #005f7a
- Georgian BayΔE00 2.193 · #22657f
- Royal BloodΔE00 2.271 · #105e80
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.