Depths of Night
#2c319b
A blue that is saturated. It is dark — it carries white text and needs care with black.
Hex
#2c319b
RGB
44, 49, 155
OKLCh
38.5% 0.169 273.2°
CIELAB (D50)
26.0, 27.2, -59.6
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 69% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 93.5; on black, Lc -9.1. 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
10.40:1 — passes AA
Black text
2.02:1 — fails AA
White text is the better of the two at10.40:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#2c319b
protanopia
#30309b · ΔE00 0.8
deuteranopia
#30309b · ΔE00 0.8
tritanopia
#2f2f9f · ΔE00 1.0
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBluebell at ΔE00 1.129: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- BluebellΔE00 1.129 · #333399
- Royal NightΔE00 1.381 · #2b3191
- Ultramarine HighlightΔE00 1.744 · #2e328f
- North Star BlueΔE00 1.804 · #223399
- Perfect DarkΔE00 1.828 · #313390
- Liquid DenimΔE00 1.973 · #2d3796
- Purple CabbageΔE00 2.884 · #3d34a5
- Intergalactic HighwayΔE00 2.949 · #273287
- Ritterlich BlueΔE00 3.025 · #293286
- Cosmic CobaltΔE00 3.035 · #2e2d88
- Yuè Guāng Lán BlueΔE00 3.523 · #2138ab
- Egyptian BlueΔE00 3.544 · #1034a6
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.