Thunder & Lightning
#f9f5db
A yellow that is nearly neutral — the hue shows only against a true grey. It is very light — it works as a page background, not as text.
Hex
#f9f5db
RGB
249, 245, 219
OKLCh
96.6% 0.034 99.8°
CIELAB (D50)
96.3, -1.8, 13.1
What is true of this colour, and of no other
- 74 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 48% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 0.0; on black, Lc -100.7. 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 5.1 — no blue cone.
Text on this colour
White text
1.10:1 — fails AA
Black text
19.11:1 — passes AA
Black text is the better of the two at19.11:1. That is enough for body text.
As text on white, it needs to change
#7b7760 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
#f9f5db
protanopia
#f5f5db · ΔE00 1.8
deuteranopia
#f6f6db · ΔE00 1.9
tritanopia
#f7f7cc · ΔE00 5.1
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSkullfire at ΔE00 0.321: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- SkullfireΔE00 0.321 · #f9f5da
- Warm SunΔE00 0.37 · #faf6db
- Pineapple SorbetΔE00 0.526 · #f7f4da
- Weathered PlasticΔE00 0.55 · #f9f4d9
- White HydrangeaΔE00 0.557 · #f9f6dd
- Limestone QuarryΔE00 0.613 · #f9f6db
- TranscendenceΔE00 0.681 · #f8f4d8
- Line DriedΔE00 0.706 · #f8f3da
- Lemon SplashΔE00 0.772 · #f9f6de
- Breezy BeigeΔE00 0.791 · #f7f2d7
- Best of SummerΔE00 0.828 · #f7f2d9
- Campanelle NoodleΔE00 0.832 · #fcf7db
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.