HueComb

Fluorescence

#89d178

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

Hex

#89d178

RGB

137, 209, 120

OKLCh

79.2% 0.141 139.7°

CIELAB (D50)

77.5, -36.1, 36.7

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 56% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 34.2; on black, Lc -68.4. 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 15.4 and 15.0 and 48.0 — no red cone.

Text on this colour

White text

1.83:1 — fails AA

Black text

11.46:1 — passes AA

Black text is the better of the two at11.46:1. That is enough for body text.

As text on white, it needs to change

#40862f 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

#89d178

protanopia

#cbcb78 · ΔE00 15.4

deuteranopia

#c0c07b · ΔE00 15.0

tritanopia

#b2b2ff · ΔE00 48.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isGreen Lacewing at ΔE00 1.686: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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