Orbital

#6d83bb

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

Hex

#6d83bb

RGB

109, 131, 187

OKLCh

61.6% 0.089 267.3°

CIELAB (D50)

54.7, 3.0, -32.3

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • It uses 43% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 64.9; on black, Lc -36.8. 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 6.5 and 6.0 and 5.5 — no red cone.

Text on this colour

White text

3.74:1 — large text only

Black text

5.61:1 — passes AA

Black text is the better of the two at5.61:1. That is enough for body text.

As text on white, it needs to change

#6076ad 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

#6d83bb

protanopia

#8181bb · ΔE00 6.5

deuteranopia

#7d7dbb · ΔE00 6.0

tritanopia

#7979dd · ΔE00 5.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isKimono at ΔE00 1.467: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • KimonoΔE00 1.467 · #6d86b6
  • MarvellousΔE00 1.625 · #6a7fb4
  • Persian JewelΔE00 2.053 · #6a7dbc
  • Violets Are BlueΔE00 2.095 · #7487c6
  • WatertownΔE00 2.446 · #637fbb
  • Venture VioletΔE00 2.821 · #7381b3
  • Marine InkΔE00 2.937 · #6384b8
  • Dayflower BlueΔE00 3.077 · #758cbf
  • Ultramarine BlueΔE00 3.19 · #657abb
  • Larkspur BouquetΔE00 3.356 · #798bbd
  • GlaucousΔE00 3.371 · #6082b6
  • Twilight TwinkleΔE00 3.503 · #7b85c6

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