Denim
#2243b6
A blue that is saturated. It is mid — the hardest range to put text on, either colour struggles.
Hex
#2243b6
RGB
34, 67, 182
OKLCh
43.8% 0.185 266.1°
CIELAB (D50)
32.3, 23.2, -65.5
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 62% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 87.8; on black, Lc -14.4. 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.
- tritanopia shifts it by ΔE00 5.8 — no blue cone.
Text on this colour
White text
8.25:1 — passes AA
Black text
2.55:1 — fails AA
White text is the better of the two at8.25:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#2243b6
protanopia
#4040b6 · ΔE00 4.6
deuteranopia
#3b3bb6 · ΔE00 4.8
tritanopia
#3636ca · ΔE00 5.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Blue at ΔE00 2.007: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- Blue BlueΔE00 2.007 · #2242c7
- Once in a Blue MoonΔE00 2.045 · #0044bb
- Night in ManchesterΔE00 2.298 · #324ab2
- Persian BlueΔE00 3.013 · #1c39bb
- Absolute ZeroΔE00 3.048 · #0048ba
- Indian PeafowlΔE00 3.216 · #0044aa
- Blue MurderΔE00 3.44 · #2539bf
- Kikorangi BlueΔE00 3.526 · #2e4ebf
- Flying Fish BlueΔE00 3.614 · #024aca
- Yuè Guāng Lán BlueΔE00 3.645 · #2138ab
- Third Eye ChakraΔE00 3.705 · #243bcd
- Soulstone BlueΔE00 3.733 · #0047ab
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.