Mediaeval Blue
#2e3858
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
#2e3858
RGB
46, 56, 88
OKLCh
34.7% 0.058 270.0°
CIELAB (D50)
23.8, 3.2, -20.9
What is true of this colour, and of no other
- One other named colour sits within ΔE00 2 of it.
- It uses only 25% 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 96.5; 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
11.52:1 — passes AA
Black text
1.82:1 — fails AA
White text is the better of the two at11.52:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#2e3858
protanopia
#373758 · ΔE00 4.1
deuteranopia
#353558 · ΔE00 4.1
tritanopia
#333367 · ΔE00 4.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMidnight Escapade at ΔE00 1.716: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Midnight EscapadeΔE00 1.716 · #2b3458
- Gulf BlueΔE00 2.498 · #343f5c
- Blue LobeliaΔE00 2.563 · #28314d
- BoatswainΔE00 2.608 · #243256
- Quill TipΔE00 2.612 · #2d3359
- Bay of ManyΔE00 2.661 · #353e64
- MangosteenΔE00 2.67 · #383e5d
- Blue DepthsΔE00 2.9 · #2c3a64
- Very BlueΔE00 3.03 · #33365b
- AhoyΔE00 3.519 · #2a3149
- Victory BlueΔE00 3.657 · #3a405a
- WahooΔE00 3.756 · #272d4e
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.