Inspect PaleTurquoise (#AFEEEE) in HEX, RGB, HSL, LCH and OKLCH, check its contrast, and copy the value you need.
PaleTurquoise
#AFEEEE
Black text reads best on this background, at 16.29:1.
PaleTurquoise is one of the 148 CSS named colors, and resolves to #AFEEEE in every browser. In numbers that is rgb(175, 238, 238) and hsl(180, 65%, 81%). Perceptually it is a very light, muted color: OKLCH puts its lightness at 91% and its chroma at 0.063. It sits in the cyans at 196 degrees of OKLCH hue, and reads as a cool color.
White text only reaches 1.29:1 here, so black text is the safer pairing at 16.29:1. Because it is this light, PaleTurquoise works best as a page or card background with dark text over it.
The closest CSS named colors to PaleTurquoise, measured with CIEDE2000, are PowderBlue (#B0E0E6), LightCyan (#E0FFFF), LightBlue (#ADD8E6). If PaleTurquoise is not quite right, those are the nearest keywords to try before reaching for a custom value.
HEX
#AFEEEE
RGB
rgb(175, 238, 238)
HSL
hsl(180, 65%, 81%)
HWB
hwb(180 69% 7%)
CMYK
cmyk(26%, 0%, 0%, 7%)
LAB
lab(89.87 -20.5 -6.76)
LCH
lch(89.87 21.59 198.25)
OKLCH
oklch(90.69% 0.0632 196.09)
WCAG asks for 4.5:1 between body text and its background. On #AFEEEE white text measures 1.29:1 and black text 16.29:1, so black clears it and white does not.
White text on PaleTurquoise
WCAG 2.2
1.29:1
APCA
Lc 16
Fails AA body text
Fails AAA body text
Fails AA large text
Black text on PaleTurquoise
WCAG 2.2
16.29:1
APCA
Lc 89
Passes AA body text
Passes AAA body text
Passes AA large text
Check PaleTurquoise against any other color in the contrast checker.
PaleTurquoise sits at 91% OKLCH lightness. Holding its hue and chroma and moving only that value carries it up to #E3FFFF and down to #000808, which keeps the family recognizable instead of letting it drift toward gray the way a plain HSL ramp does.
#B4F3F3
20% lighter
#B8F8F8
40% lighter
#BDFDFD
60% lighter
#CDFFFF
80% lighter
#E3FFFF
100% lighter
#7DBBBB
20% darker
#4D8A8A
40% darker
#1C5C5C
60% darker
#002F30
80% darker
#000808
100% darker
Build a full accessible scale from #AFEEEE in the shade generator.
Hues rotated around #AFEEEE 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.
PaleTurquoise sits at 196 degrees. Rotating it a half turn lands on 16 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 PaleTurquoise at 166 and 226 degrees. They stay close enough to read as the same family, which is what you want for hover states, secondary surfaces and gradients.
196, 316 and 76 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 16 degrees, this pair flanks it at 346 and 46. You keep most of the contrast of a complementary pairing while losing the harshness.
Explore more combinations around PaleTurquoise on the color wheel.
The biggest shift is under deuteranopia, where #AFEEEE reads as #D7DCEF, 20.1 CIEDE2000 units away. If PaleTurquoise is the only thing marking a state or a series, roughly one viewer in twelve will miss it.
Protanopia
#E4E7EE
Deuteranopia
#D7DCEF
Tritanopia
#9FF3EE
Achromatopsia
#E1E1E1
The nearest CSS keywords to #AFEEEE, ranked by perceptual distance rather than by how close their hex digits happen to look.