Baby Blue

#a2cffe

A blue that is muted. It is very light — it works as a page background, not as text.

Hex

#a2cffe

RGB

162, 207, 254

OKLCh

83.9% 0.082 249.9°

CIELAB (D50)

81.2, -6.8, -28.2

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 98% 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 28.0; on black, Lc -74.9. 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.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 13.4 and 12.5 and 12.0 — no red cone.

Text on this colour

White text

1.63:1 — fails AA

Black text

12.89:1 — passes AA

Black text is the better of the two at12.89:1. That is enough for body text.

As text on white, it needs to change

#507aa5 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

#a2cffe

protanopia

#cbcbfe · ΔE00 13.4

deuteranopia

#c3c3ff · ΔE00 12.5

tritanopia

#bbbbff · ΔE00 12.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isApocyan at ΔE00 1.523: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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