Sea Serpent’s Tears
#5511cc
A violet that is about as vivid as sRGB can show at this lightness. It is mid — the hardest range to put text on, either colour struggles.
Hex
#5511cc
RGB
85, 17, 204
OKLCh
43.7% 0.242 286.9°
CIELAB (D50)
29.6, 58.5, -82.7
What is true of this colour, and of no other
- One other named colour sits within ΔE00 2 of it.
- It uses 96% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 88.7; on black, Lc -13.5. 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 6.4 and 7.3 and 10.7 — no red cone.
Text on this colour
White text
8.98:1 — passes AA
Black text
2.34:1 — fails AA
White text is the better of the two at8.98:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#5511cc
protanopia
#2121cc · ΔE00 6.4
deuteranopia
#3131cc · ΔE00 7.3
tritanopia
#3e3e9f · ΔE00 10.7
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isViolet Blue at ΔE00 0.976: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Violet BlueΔE00 0.976 · #510ac9
- Space OperaΔE00 2.111 · #5511dd
- PurplueΔE00 2.15 · #5e0dc2
- Nasu PurpleΔE00 2.432 · #5d21d0
- Trusted PurpleΔE00 2.816 · #6600cc
- Elegant MidnightΔE00 2.895 · #5500bb
- Blue Copper OreΔE00 3.026 · #4411dd
- Blue PurpleΔE00 3.272 · #5729ce
- Gonzo VioletΔE00 3.494 · #5d06e9
- Tezcatlipōca BlueΔE00 3.778 · #5500ee
- Interdimensional BlueΔE00 3.982 · #360ccc
- Wèi Lán AzureΔE00 4.076 · #5a06ef
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.