Orchid

#7a81ff

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

Hex

#7a81ff

RGB

122, 129, 255

OKLCh

65.9% 0.184 277.7°

CIELAB (D50)

58.2, 23.8, -64.8

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 59.8; on black, Lc -41.9. 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.
  • All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.

Text on this colour

White text

3.28:1 — large text only

Black text

6.41:1 — passes AA

Black text is the better of the two at6.41:1. That is enough for body text.

As text on white, it needs to change

#6568e4 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

#7a81ff

protanopia

#8080ff · ΔE00 1.4

deuteranopia

#7f7fff · ΔE00 1.4

tritanopia

#7e7eff · ΔE00 1.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Party Parrot at ΔE00 1.398: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Blue Party ParrotΔE00 1.398 · #8080ff
  • Stargate ShimmerΔE00 2.979 · #7777ff
  • Byzantine Night BlueΔE00 3.542 · #6a79f7
  • Hera BlueΔE00 3.891 · #7777ee
  • Lavender Blue ShadowΔE00 3.9 · #8b88f8
  • PeriwinkleΔE00 4.325 · #8e82fe
  • Pan PurpleΔE00 4.45 · #657aef
  • TanzineΔE00 4.688 · #7983d7
  • Punch Out GloveΔE00 4.823 · #6888fc
  • BainganīΔE00 5.083 · #8273fd
  • Deep DenimΔE00 5.152 · #6688ff
  • Soft BlueΔE00 5.832 · #6488ea

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