Intergalactic Highway
#273287
A blue that is muted. It is dark — it carries white text and needs care with black.
Hex
#273287
RGB
39, 50, 135
OKLCh
36.5% 0.141 271.7°
CIELAB (D50)
24.3, 19.5, -50.0
What is true of this colour, and of no other
- 5 other named colours sit within ΔE00 2 of it.
- It uses 60% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 95.2; on black, Lc -7.5. 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
11.10:1 — passes AA
Black text
1.89:1 — fails AA
White text is the better of the two at11.10:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#273287
protanopia
#313187 · ΔE00 2.1
deuteranopia
#2f2f87 · ΔE00 2.1
tritanopia
#2d2d90 · ΔE00 2.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRitterlich Blue at ΔE00 0.397: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Ritterlich BlueΔE00 0.397 · #293286
- Migol BlueΔE00 1.01 · #283482
- Deep Space RoyalΔE00 1.283 · #223382
- Ultramarine HighlightΔE00 1.631 · #2e328f
- Royal NightΔE00 1.664 · #2b3191
- Perfect DarkΔE00 2.025 · #313390
- Bavarian BlueΔE00 2.09 · #1c3382
- Liquid DenimΔE00 2.436 · #2d3796
- Cosmic CobaltΔE00 2.465 · #2e2d88
- North Star BlueΔE00 2.58 · #223399
- Surf the WebΔE00 2.828 · #20377f
- Depths of NightΔE00 2.949 · #2c319b
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.