Crystal Gem

#79d0a7

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

Hex

#79d0a7

RGB

121, 208, 167

OKLCh

79.1% 0.104 162.3°

CIELAB (D50)

77.2, -34.5, 11.8

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • It uses 60% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 34.5; on black, Lc -68.1. 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 19.0 and 19.8 and 37.9 — no red cone.

Text on this colour

White text

1.84:1 — fails AA

Black text

11.39:1 — passes AA

Black text is the better of the two at11.39:1. That is enough for body text.

As text on white, it needs to change

#2a8661 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

#79d0a7

protanopia

#c9c9a7 · ΔE00 19.0

deuteranopia

#bcbca9 · ΔE00 19.8

tritanopia

#acacff · ΔE00 37.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPharaoh’s Jade at ΔE00 1.316: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Pharaoh’s JadeΔE00 1.316 · #83d1a9
  • Tadorna TealΔE00 1.706 · #7ad7ad
  • Minted EleganceΔE00 2.171 · #6ec9a3
  • Fresco GreenΔE00 2.182 · #7bd9ad
  • MaroonedΔE00 2.475 · #86cdab
  • Aquamarine OceanΔE00 2.575 · #82cdad
  • Intense JadeΔE00 2.619 · #68c89d
  • Sea TreasureΔE00 2.738 · #78d1b1
  • Jocose JadeΔE00 2.997 · #77cc99
  • Aquarium BlueΔE00 3.143 · #66cdaa
  • Park Green FlatΔE00 3.249 · #88c9a6
  • Foul GreenΔE00 3.294 · #85c7a1

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