Formosan Green

#a69a51

A yellow that is muted. It is light — black text sits on it comfortably, white text does not.

Hex

#a69a51

RGB

166, 154, 81

OKLCh

68.1% 0.095 100.1°

CIELAB (D50)

63.5, -2.8, 39.6

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses 67% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 54.6; on black, Lc -47.2. 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.
  • tritanopia shifts it by ΔE00 8.7 — no blue cone.

Text on this colour

White text

2.85:1 — fails AA

Black text

7.36:1 — passes AA

Black text is the better of the two at7.36:1. That is enough for body text.

As text on white, it needs to change

#83772d 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

#a69a51

protanopia

#9b9b51 · ΔE00 3.8

deuteranopia

#9e9e50 · ΔE00 3.8

tritanopia

#a0a000 · ΔE00 8.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGremlin at ΔE00 0.999: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • GremlinΔE00 0.999 · #a79954
  • Organic MatterΔE00 1.229 · #a99e54
  • Iyanden DarksunΔE00 1.524 · #a59a59
  • Lentil SproutΔE00 1.885 · #a09548
  • Loveliest LeavesΔE00 2.096 · #a69a5c
  • Mediaeval SulphurΔE00 2.216 · #a79f5c
  • Queen PalmΔE00 2.313 · #ad9e4b
  • Burnished GoldΔE00 2.316 · #aa9855
  • Tallarn SandΔE00 2.349 · #a79b5e
  • Prickly PearΔE00 2.465 · #a89942
  • Faded KhakiΔE00 2.685 · #a5975b
  • Spring MossΔE00 2.716 · #a99757

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