Brutally Blue
#0022dd
A blue that is about as vivid as sRGB can show at this lightness. It is mid — the hardest range to put text on, either colour struggles.
Hex
#0022dd
RGB
0, 34, 221
OKLCh
42.6% 0.268 264.2°
CIELAB (D50)
28.2, 51.7, -95.0
What is true of this colour, and of no other
- 4 other named colours sit within ΔE00 2 of it.
- It uses 91% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 89.1; on black, Lc -13.2. 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
9.24:1 — passes AA
Black text
2.27:1 — fails AA
White text is the better of the two at9.24:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#0022dd
protanopia
#2020dd · ΔE00 1.2
deuteranopia
#1c1cdd · ΔE00 1.5
tritanopia
#1616e3 · ΔE00 1.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isLapis on Neptune at ΔE00 1.413: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Lapis on NeptuneΔE00 1.413 · #1f22d2
- Slice of HeavenΔE00 1.94 · #0022ee
- Arcade GlowΔE00 1.961 · #0022cc
- Blue OverdoseΔE00 1.971 · #0020ef
- Midsummer NightsΔE00 2.404 · #0011ee
- Nightfall in SuburbiaΔE00 2.428 · #0011dd
- BluebonnetΔE00 2.512 · #1c1cf0
- TetraammineΔE00 2.612 · #1e20c7
- Burning UltrablueΔE00 2.935 · #150aec
- Rich BlueΔE00 3 · #021bf9
- Hyperlink BlueΔE00 3.348 · #0000ee
- Pure BlueΔE00 3.356 · #0203e2
4 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.