Muddy Yellow
#bfac05
A yellow that is saturated. It is light — black text sits on it comfortably, white text does not.
Hex
#bfac05
RGB
191, 172, 5
OKLCh
73.8% 0.153 101.4°
CIELAB (D50)
70.3, -3.4, 71.1
What is true of this colour, and of no other
- 5 other named colours sit within ΔE00 2 of it.
- 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 45.2; on black, Lc -56.9. 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.
- protanopia and tritanopia shift it by ΔE00 5.0 and 5.2 — no red cone.
Text on this colour
White text
2.30:1 — fails AA
Black text
9.12:1 — passes AA
Black text is the better of the two at9.12:1. That is enough for body text.
As text on white, it needs to change
#857800 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.
The same colour, with one cone missing
As you see it
#bfac05
protanopia
#aeae06 · ΔE00 5.0
deuteranopia
#b2b200 · ΔE00 5.0
tritanopia
#b6b600 · ΔE00 5.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isApple Jade at ΔE00 0.909: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Apple JadeΔE00 0.909 · #bdad13
- Sharp LimeΔE00 1.622 · #c0ad28
- Brass KnuckleΔE00 1.635 · #b9a70f
- Green FlavourΔE00 1.659 · #bbaa22
- Sulphine YellowΔE00 1.704 · #baa600
- GreenfinchΔE00 2.106 · #bda928
- Brownish YellowΔE00 2.158 · #c9b003
- Earls GreenΔE00 2.321 · #b8a722
- SulphurΔE00 2.39 · #cab012
- CitronetteΔE00 2.668 · #c4aa27
- Mulgore MustardΔE00 2.828 · #c2b332
- La VidaΔE00 2.882 · #c4a703
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.