Blue Overdose
#0020ef
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
#0020ef
RGB
0, 32, 239
OKLCh
44.7% 0.287 264.2°
CIELAB (D50)
30.1, 57.1, -102.2
What is true of this colour, and of no other
- 7 other named colours sit within ΔE00 2 of it.
- It uses 93% 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 86.9; on black, Lc -15.2. 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
8.56:1 — passes AA
Black text
2.45:1 — fails AA
White text is the better of the two at8.56:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#0020ef
protanopia
#1e1eef · ΔE00 1.0
deuteranopia
#1a1aef · ΔE00 1.1
tritanopia
#1515f4 · ΔE00 1.5
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSlice of Heaven at ΔE00 0.296: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Slice of HeavenΔE00 0.296 · #0022ee
- BluebonnetΔE00 1.021 · #1c1cf0
- Rich BlueΔE00 1.09 · #021bf9
- Icelandic WaterΔE00 1.917 · #0011ff
- Midsummer NightsΔE00 1.917 · #0011ee
- Is It ColdΔE00 1.961 · #0022ff
- Brutally BlueΔE00 1.971 · #0022dd
- Strong BlueΔE00 2.403 · #0c06f7
- Primary BlueΔE00 2.475 · #0804f9
- Burning UltrablueΔE00 2.622 · #150aec
- Graphical 80’s SkyΔE00 2.648 · #0000fc
- BlueΔE00 2.66 · #0000ff
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.