Inspect PowderBlue (#B0E0E6) in HEX, RGB, HSL, LCH and OKLCH, check its contrast, and copy the value you need.
PowderBlue
#B0E0E6
Black text reads best on this background, at 14.65:1.
PowderBlue is one of the 148 CSS named colors, and resolves to #B0E0E6 in every browser. In numbers that is rgb(176, 224, 230) and hsl(187, 52%, 80%). Perceptually it is a light, muted color: OKLCH puts its lightness at 88% and its chroma at 0.05. It sits in the cyans at 206 degrees of OKLCH hue, and reads as a cool color.
White text only reaches 1.43:1 here, so black text is the safer pairing at 14.65:1. That combination of lightness and chroma makes it a workable mid-tone, the kind of value that lands in the middle of a shade scale.
The closest CSS named colors to PowderBlue, measured with CIEDE2000, are LightBlue (#ADD8E6), PaleTurquoise (#AFEEEE), LightCyan (#E0FFFF). If PowderBlue is not quite right, those are the nearest keywords to try before reaching for a custom value.
HEX
#B0E0E6
RGB
rgb(176, 224, 230)
HSL
hsl(187, 52%, 80%)
HWB
hwb(187 69% 10%)
CMYK
cmyk(23%, 3%, 0%, 10%)
LAB
lab(85.95 -15.07 -8.31)
LCH
lch(85.95 17.21 208.88)
OKLCH
oklch(87.51% 0.0502 205.73)
WCAG asks for 4.5:1 between body text and its background. On #B0E0E6 white text measures 1.43:1 and black text 14.65:1, so black clears it and white does not.
White text on PowderBlue
WCAG 2.2
1.43:1
APCA
Lc 23
Fails AA body text
Fails AAA body text
Fails AA large text
Black text on PowderBlue
WCAG 2.2
14.65:1
APCA
Lc 82
Passes AA body text
Passes AAA body text
Passes AA large text
Check PowderBlue against any other color in the contrast checker.
PowderBlue sits at 88% OKLCH lightness. Holding its hue and chroma and moving only that value carries it up to #EAFDFF and down to #000709, which keeps the family recognizable instead of letting it drift toward gray the way a plain HSL ramp does.
#B7E7ED
20% lighter
#BDEEF4
40% lighter
#C4F5FB
60% lighter
#D3FAFF
80% lighter
#EAFDFF
100% lighter
#81AFB5
20% darker
#548187
40% darker
#29565B
60% darker
#002D32
80% darker
#000709
100% darker
Build a full accessible scale from #B0E0E6 in the shade generator.
Hues rotated around #B0E0E6 in OKLCH, then pulled back into the sRGB gamut. Each swatch is labelled with the nearest CSS named color so you have a keyword to start from.
PowderBlue sits at 206 degrees. Rotating it a half turn lands on 26 degrees, the hue directly opposite. It is the strongest pairing you can make without changing lightness, and the one most likely to vibrate if you use both at full chroma.
The neighbors of PowderBlue at 176 and 236 degrees. They stay close enough to read as the same family, which is what you want for hover states, secondary surfaces and gradients.
206, 326 and 86 degrees divide the wheel into thirds. Balanced enough to carry a whole palette without one color dominating the other two.
Instead of the complement at 26 degrees, this pair flanks it at 356 and 56. You keep most of the contrast of a complementary pairing while losing the harshness.
Explore more combinations around PowderBlue on the color wheel.
The biggest shift is under deuteranopia, where #B0E0E6 reads as #CDD3E6, 16.2 CIEDE2000 units away. If PowderBlue is the only thing marking a state or a series, roughly one viewer in twelve will miss it.
Protanopia
#D7DBE6
Deuteranopia
#CDD3E6
Tritanopia
#A3E5E2
Achromatopsia
#D6D6D6
The nearest CSS keywords to #B0E0E6, ranked by perceptual distance rather than by how close their hex digits happen to look.