Sage the Day

#aca28f

A neutral that has no useful hue — it reads as a grey. It is light — black text sits on it comfortably, white text does not.

Hex

#aca28f

RGB

172, 162, 143

OKLCh

71.5% 0.029 83.5°

CIELAB (D50)

67.1, 1.3, 11.3

What is true of this colour, and of no other

10 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 only 20% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
As text on white it measures APCA Lc 49.5; on black, Lc -52.4. 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 5.4 and 5.6 and 13.8 — no red cone.

Text on this colour

White text

2.52:1 — fails AA

Black text

8.32:1 — passes AA

Black text is the better of the two at8.32:1. That is enough for body text.

As text on white, it needs to change

#7f7664 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

#aca28f

protanopia

#a3a38f · ΔE00 5.4

deuteranopia

#a5a58f · ΔE00 5.6

tritanopia

#a7a761 · ΔE00 13.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGarden Wall at ΔE00 0.739: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

Garden WallΔE00 0.739 · #aea492
RoadsideΔE00 0.998 · #ada493
Smoked TanΔE00 1.4 · #aea494
Plaza TaupeΔE00 1.552 · #aea393
Spray GreenΔE00 1.602 · #aea692
Forgotten SandstoneΔE00 1.671 · #afa696
Mercer CharcoalΔE00 1.744 · #aca495
Apple HillΔE00 1.857 · #a69f8d
Stonehenge GreigeΔE00 1.907 · #a79d8d
LinseedΔE00 1.951 · #b0a895
Raffia GreigeΔE00 2.061 · #b3a996
AldabraΔE00 2.065 · #aaa492

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