Indiglow
#301885
A violet that is saturated. It is dark — it carries white text and needs care with black.
Hex
#301885
RGB
48, 24, 133
OKLCh
32.9% 0.166 282.4°
CIELAB (D50)
18.9, 35.8, -57.6
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 85% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
- As text on white it measures APCA Lc 98.5; on black, Lc 0.0. 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.
- tritanopia shifts it by ΔE00 5.4 — no blue cone.
Text on this colour
White text
13.17:1 — passes AA
Black text
1.60:1 — fails AA
White text is the better of the two at13.17:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#301885
protanopia
#1c1c85 · ΔE00 3.4
deuteranopia
#212185 · ΔE00 3.8
tritanopia
#262674 · ΔE00 5.4
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPixie Powder at ΔE00 2.18: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.
- Pixie PowderΔE00 2.18 · #391285
- Nightly ExpeditionΔE00 2.301 · #221188
- Persian IndigoΔE00 2.349 · #32127a
- Outer RimΔE00 2.868 · #221177
- Blue RoyaleΔE00 3.28 · #29217a
- Deep Space RodeoΔE00 3.481 · #332277
- Gentian BlueΔE00 3.544 · #312297
- PrunelleΔE00 3.602 · #220878
- Full Swing IndigoΔE00 3.762 · #320094
- Galactic CruiseΔE00 3.798 · #111188
- Explorer of the GalaxiesΔE00 3.908 · #3a1f76
- Orbital KingdomΔE00 3.934 · #220088
6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.