Old World
#91a8cf
A blue that is nearly neutral — the hue shows only against a true grey. It is light — black text sits on it comfortably, white text does not.
Hex
#91a8cf
RGB
145, 168, 207
OKLCh
72.8% 0.063 260.9°
CIELAB (D50)
68.1, -1.4, -22.8
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses 44% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 47.5; on black, Lc -54.5. 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 8.5 and 8.1 and 6.2 — no red cone.
Text on this colour
White text
2.41:1 — fails AA
Black text
8.71:1 — passes AA
Black text is the better of the two at8.71:1. That is enough for body text.
As text on white, it needs to change
#62789c is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.
The same colour, with one cone missing
As you see it
#91a8cf
protanopia
#a6a6cf · ΔE00 8.5
deuteranopia
#a2a2cf · ΔE00 8.1
tritanopia
#9d9df9 · ΔE00 6.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSerenity at ΔE00 0.229: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- SerenityΔE00 0.229 · #91a8d0
- Hopeful DreamΔE00 1.168 · #95a9cd
- ForesightΔE00 1.411 · #94a8d3
- Victory LakeΔE00 1.561 · #92abd8
- Casual WaterΔE00 1.73 · #8fabd6
- AnodeΔE00 1.837 · #89a4cd
- Rip Van PeriwinkleΔE00 1.87 · #8fa4d2
- Black DropΔE00 1.885 · #90abd9
- Lazy DayΔE00 2.08 · #95aed1
- FinesseΔE00 2.157 · #96a8c8
- Polo BlueΔE00 2.17 · #8aa7cc
- DocksideΔE00 2.249 · #95aed0
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.