Excalibur
#676168
A neutral that has no useful hue — it reads as a grey. It is mid — the hardest range to put text on, either colour struggles.
Hex
#676168
RGB
103, 97, 104
OKLCh
50.0% 0.013 321.4°
CIELAB (D50)
41.9, 3.5, -3.1
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses only 6% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
- As text on white it measures APCA Lc 80.1; on black, Lc -21.7. 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.
- tritanopia shifts it by ΔE00 13.4 — no blue cone.
Text on this colour
White text
6.02:1 — passes AA
Black text
3.49:1 — large text only
White text is the better of the two at6.02:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#676168
protanopia
#626268 · ΔE00 3.5
deuteranopia
#636368 · ΔE00 3.6
tritanopia
#646455 · ΔE00 13.4
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlackwater Park at ΔE00 0.844: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Blackwater ParkΔE00 0.844 · #696268
- ForgeΔE00 1.484 · #67616b
- Wonder WineΔE00 1.573 · #635d63
- Stunning ShadeΔE00 1.668 · #676064
- Alter EgoΔE00 1.791 · #69656d
- Slate MauveΔE00 1.835 · #625c63
- Cracked SlateΔE00 2.006 · #69656a
- Moire SatinΔE00 2.047 · #665d63
- Muted MulberryΔE00 2.24 · #66626d
- Lavender MoorΔE00 2.314 · #67636e
- Windsor GreyΔE00 2.401 · #626066
- Vintage PlumΔE00 2.563 · #675d62
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.