Oil
#313330
A neutral that has no useful hue — it reads as a grey. It is dark — it carries white text and needs care with black.
Hex
#313330
RGB
49, 51, 48
OKLCh
31.8% 0.006 134.9°
CIELAB (D50)
21.0, -1.4, 1.6
What is true of this colour, and of no other
- No other named colour in the set is within ΔE00 2 of it — it stands alone.
- 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 98.9; on black, Lc 0.0. 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.
- All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.
Text on this colour
White text
12.75:1 — passes AA
Black text
1.65:1 — fails AA
White text is the better of the two at12.75:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#313330
protanopia
#333330 · ΔE00 1.4
deuteranopia
#323230 · ΔE00 1.4
tritanopia
#323236 · ΔE00 4.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCharcoal at ΔE00 2.261: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- CharcoalΔE00 2.261 · #343837
- TomcatΔE00 2.518 · #323232
- Phantom ShipΔE00 2.519 · #2f3434
- CarbonΔE00 2.522 · #333333
- Wet ConcreteΔE00 2.543 · #353838
- JetΔE00 2.568 · #343434
- Dark GreyΔE00 2.573 · #363737
- Pirate BlackΔE00 2.575 · #363838
- Off BlackΔE00 2.628 · #303030
- EternityΔE00 2.762 · #2d2f28
- Dryad BarkΔE00 2.766 · #33312d
- Carbon FibreΔE00 2.879 · #2e2e2e
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.