Frost Fairy
#bbcfef
A blue that is nearly neutral — the hue shows only against a true grey. It is very light — it works as a page background, not as text.
Hex
#bbcfef
RGB
187, 207, 239
OKLCh
85.0% 0.050 259.8°
CIELAB (D50)
82.4, -1.9, -18.2
What is true of this colour, and of no other
- One other named colour sits within ΔE00 2 of it.
- It uses 67% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 26.4; on black, Lc -76.6. 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 8.3 and 8.3 and 7.6 — no red cone.
Text on this colour
White text
1.58:1 — fails AA
Black text
13.28:1 — passes AA
Black text is the better of the two at13.28:1. That is enough for body text.
As text on white, it needs to change
#667895 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
#bbcfef
protanopia
#cdcdef · ΔE00 8.3
deuteranopia
#c9c9ef · ΔE00 8.3
tritanopia
#c5c5ff · ΔE00 7.6
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMaritime at ΔE00 1.476: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- MaritimeΔE00 1.476 · #bdcfea
- RadarΔE00 2.045 · #b6c8e4
- Periwinkle DreamΔE00 2.07 · #b8cbe5
- Beautiful DreamΔE00 2.289 · #b6c7e3
- CuddleΔE00 2.346 · #bccae8
- Mr. GlassΔE00 2.487 · #c0d5ef
- Promise KeepingΔE00 2.518 · #afc7e8
- Light Blue GreyΔE00 2.551 · #b7c9e2
- Tropical BlueΔE00 2.827 · #aec9eb
- Retina Soft BlueΔE00 2.837 · #b6c7e0
- BreezeΔE00 2.877 · #aec9ea
- Pale WisteriaΔE00 2.898 · #bbc8e6
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.