Bittersweet

#fea051

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

Hex

#fea051

RGB

254, 160, 81

OKLCh

78.7% 0.146 58.2°

CIELAB (D50)

74.7, 31.1, 55.2

What is true of this colour, and of no other

11 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 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 39.1; on black, Lc -63.3. 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 26.4 and 27.5 and 30.5 — no red cone.

Text on this colour

White text

2.03:1 — fails AA

Black text

10.36:1 — passes AA

Black text is the better of the two at10.36:1. That is enough for body text.

As text on white, it needs to change

#b46100 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.

Try it against your own background

The same colour, with one cone missing

As you see it

#fea051

protanopia

#aeae52 · ΔE00 26.4

deuteranopia

#c2c24a · ΔE00 27.5

tritanopia

#d5d500 · ΔE00 30.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isTangerine Tango at ΔE00 0.742: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

Tangerine TangoΔE00 0.742 · #ff9e4b
Off-The-Leash OrangeΔE00 1.195 · #ffa259
SunshadeΔE00 1.346 · #fa9d49
Exotic FlowerΔE00 1.452 · #ffa24c
Au GratinΔE00 1.473 · #ff9d45
Orange HibiscusΔE00 1.618 · #ff9a45
Clarified OrangeΔE00 1.73 · #fea15b
Absolute ApricotΔE00 1.835 · #ff9944
Exotic BlossomΔE00 1.884 · #fd9d43
KumquatΔE00 1.976 · #fb9942
Echinoidea ThornsΔE00 1.983 · #ffa756
Autumn SplendourΔE00 2.12 · #fe9a50

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