Anti-Flash White
#f2f3f4
A neutral that has no useful hue — it reads as a grey. It is very light — it works as a page background, not as text.
Hex
#f2f3f4
RGB
242, 243, 244
OKLCh
96.4% 0.002 247.8°
CIELAB (D50)
95.8, -0.2, -0.6
What is true of this colour, and of no other
- 42 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
- It uses only 9% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
- As text on white it measures APCA Lc 0.0; on black, Lc -99.9. 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
1.11:1 — fails AA
Black text
18.90:1 — passes AA
Black text is the better of the two at18.90:1. That is enough for body text.
As text on white, it needs to change
#767778 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.
The same colour, with one cone missing
As you see it
#f2f3f4
protanopia
#f3f3f4 · ΔE00 0.5
deuteranopia
#f3f3f4 · ΔE00 0.6
tritanopia
#f3f3f7 · ΔE00 1.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isChef’s Hat at ΔE00 0.206: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Chef’s HatΔE00 0.206 · #f3f4f5
- Liquid NitrogenΔE00 0.528 · #f3f3f4
- LighthouseΔE00 0.55 · #f3f4f4
- Gram’s HairΔE00 0.617 · #f5f6f7
- Zappy ZebraΔE00 0.785 · #f1f3f3
- Errigal WhiteΔE00 0.802 · #f2f2f4
- White SmokeΔE00 0.808 · #f5f5f5
- SnowflakeΔE00 0.819 · #eff0f0
- White WhaleΔE00 1.044 · #edeeef
- Bleached SilkΔE00 1.086 · #f3f3f2
- Lynx WhiteΔE00 1.088 · #f7f7f7
- Zhēn Zhū Bái PearlΔE00 1.191 · #f8f8f9
7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.