HueComb

Sweet Butter

#fffcd7

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

#fffcd7

RGB

255, 252, 215

OKLCh

98.4% 0.048 103.4°

CIELAB (D50)

98.5, -3.4, 18.2

What is true of this colour, and of no other

  • 23 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 sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 0.0; on black, Lc -104.7. 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.
  • 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

1.04:1 — fails AA

Black text

20.16:1 — passes AA

Black text is the better of the two at20.16:1. That is enough for body text.

As text on white, it needs to change

#7b7857 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#fffcd7

protanopia

#fcfcd7 · ΔE00 1.2

deuteranopia

#fdfdd7 · ΔE00 1.2

tritanopia

#fdfdcb · ΔE00 3.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPumpkin Seed at ΔE00 0.436: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.