Captain Kirk
#9b870c
A yellow that is muted. It is light — black text sits on it comfortably, white text does not.
Hex
#9b870c
RGB
155, 135, 12
OKLCh
62.3% 0.126 98.4°
CIELAB (D50)
56.8, -0.6, 58.7
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses 98% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 63.2; on black, Lc -38.5. 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 deuteranopia and tritanopia shift it by ΔE00 6.0 and 6.0 and 6.3 — no red cone.
Text on this colour
White text
3.58:1 — large text only
Black text
5.86:1 — passes AA
Black text is the better of the two at5.86:1. That is enough for body text.
As text on white, it needs to change
#897600 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
#9b870c
protanopia
#89890d · ΔE00 6.0
deuteranopia
#8d8d06 · ΔE00 6.0
tritanopia
#919100 · ΔE00 6.3
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isQuagmire Green at ΔE00 0.937: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- Quagmire GreenΔE00 0.937 · #998811
- Medusa GreenΔE00 1.108 · #998800
- Offbeat GreenΔE00 1.767 · #9c8b1f
- Guava GreenΔE00 2.113 · #a18d0d
- Thicket GreenΔE00 2.129 · #93840f
- PestilenceΔE00 2.57 · #9f8303
- Romaine GreenΔE00 2.691 · #a38e00
- Parsnip RootΔE00 2.912 · #9d892e
- Lemon GingerΔE00 2.954 · #968428
- Golden PalmΔE00 3.081 · #a58705
- Green SulphurΔE00 3.132 · #9e8528
- Jungle PalmΔE00 3.265 · #938326
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.