Eclipse Elixir
#1f2133
A blue that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.
Hex
#1f2133
RGB
31, 33, 51
OKLCh
25.5% 0.034 278.8°
CIELAB (D50)
13.2, 3.1, -12.3
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It uses only 22% 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 102.8; 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
15.87:1 — passes AA
Black text
1.32:1 — fails AA
White text is the better of the two at15.87:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#1f2133
protanopia
#212133 · ΔE00 1.2
deuteranopia
#202033 · ΔE00 1.2
tritanopia
#202037 · ΔE00 2.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlack Velvet at ΔE00 1.209: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Black VelvetΔE00 1.209 · #222233
- Black HowlΔE00 1.343 · #202030
- Midnight ExpressΔE00 2.177 · #21263a
- Cold SteelΔE00 2.949 · #262335
- Spinel Stone BlackΔE00 2.954 · #272a3b
- SambucusΔE00 2.964 · #17182b
- Mangu BlackΔE00 3.127 · #292938
- Sombre NightΔE00 3.208 · #161e34
- Moonless MysteryΔE00 3.237 · #1e2433
- KonΔE00 3.429 · #192236
- ValhallaΔE00 3.672 · #2a2b41
- Dark KnightΔE00 3.768 · #151931
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.