Jade Palace

#d0eed7

A green 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

#d0eed7

RGB

208, 238, 215

OKLCh

92.1% 0.044 152.4°

CIELAB (D50)

91.4, -13.4, 7.7

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 33% 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 12.0; on black, Lc -91.9. 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 deuteranopia and tritanopia shift it by ΔE00 11.0 and 11.5 and 24.0 — no red cone.

Text on this colour

White text

1.24:1 — fails AA

Black text

16.89:1 — passes AA

Black text is the better of the two at16.89:1. That is enough for body text.

As text on white, it needs to change

#627d69 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

#d0eed7

protanopia

#ebebd7 · ΔE00 11.0

deuteranopia

#e6e6d8 · ΔE00 11.5

tritanopia

#e0e0ff · ΔE00 24.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isEnd of the Rainbow at ΔE00 0.724: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

End of the RainbowΔE00 0.724 · #d2eed6
Delicate SaplingΔE00 1.348 · #d7f3dd
Glacial Water GreenΔE00 1.394 · #c9ead4
Light Lost LaceΔE00 1.503 · #d1f0dd
Fennel TeaΔE00 1.57 · #d2f4dd
Light Celery StickΔE00 1.608 · #d8f2dc
Garden ShedΔE00 1.639 · #d6efda
Greenish WhiteΔE00 1.676 · #d1f1de
Light Martian MoonΔE00 1.737 · #d1efdd
Venetian PearlΔE00 1.926 · #d2ead5
Delta MintΔE00 2.098 · #c5e6cf
ApplemintΔE00 2.198 · #cdeacd

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