Kryptonite Green

#439946

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

Hex

#439946

RGB

67, 153, 70

OKLCh

61.0% 0.146 144.1°

CIELAB (D50)

56.5, -40.3, 35.0

What is true of this colour, and of no other

  • No other named colour in the set is within ΔE00 2 of it — it stands alone.
  • It uses 74% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 63.0; on black, Lc -38.7. 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 17.7 and 17.2 and 52.6 — no red cone.

Text on this colour

White text

3.57:1 — large text only

Black text

5.88:1 — passes AA

Black text is the better of the two at5.88:1. That is enough for body text.

As text on white, it needs to change

#308735 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

#439946

protanopia

#929245 · ΔE00 17.7

deuteranopia

#878749 · ΔE00 17.2

tritanopia

#7878ee · ΔE00 52.6

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFormal Garden at ΔE00 2.064: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

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