Inspect LimeGreen (#32CD32) in HEX, RGB, HSL, LCH and OKLCH, check its contrast, and copy the value you need.
LimeGreen
#32CD32
Black text reads best on this background, at 9.91:1.
LimeGreen is one of the 148 CSS named colors, and resolves to #32CD32 in every browser. In numbers that is rgb(50, 205, 50) and hsl(120, 61%, 50%). Perceptually it is a light, vivid color: OKLCH puts its lightness at 74% and its chroma at 0.229. It sits in the greens at 143 degrees of OKLCH hue, and reads as a cool color.
White text only reaches 2.12:1 here, so black text is the safer pairing at 9.91:1. At this chroma it is loud enough to be an accent or a call to action, but it will fight anything else vivid placed next to it.
The closest CSS named colors to LimeGreen, measured with CIEDE2000, are YellowGreen (#9ACD32), Lime (#00FF00), LightGreen (#90EE90). If LimeGreen is not quite right, those are the nearest keywords to try before reaching for a custom value.
HEX
#32CD32
RGB
rgb(50, 205, 50)
HSL
hsl(120, 61%, 50%)
HWB
hwb(120 20% 20%)
CMYK
cmyk(76%, 0%, 76%, 20%)
LAB
lab(72.67 -61.87 60.06)
LCH
lch(72.67 86.22 135.85)
OKLCH
oklch(74.19% 0.2286 142.83)
WCAG asks for 4.5:1 between body text and its background. On #32CD32 white text measures 2.12:1 and black text 9.91:1, so black clears it and white does not.
White text on LimeGreen
WCAG 2.2
2.12:1
APCA
Lc 45
Fails AA body text
Fails AAA body text
Fails AA large text
Black text on LimeGreen
WCAG 2.2
9.91:1
APCA
Lc 63
Passes AA body text
Passes AAA body text
Passes AA large text
Check LimeGreen against any other color in the contrast checker.
LimeGreen sits at 74% OKLCH lightness. Holding its hue and chroma and moving only that value carries it up to #ECFFEA and down to #000900, which keeps the family recognizable instead of letting it drift toward gray the way a plain HSL ramp does.
#48DD45
20% lighter
#5BED57
40% lighter
#6CFD68
60% lighter
#B5FFB0
80% lighter
#ECFFEA
100% lighter
#00A20B
20% darker
#007706
40% darker
#004E02
60% darker
#002901
80% darker
#000900
100% darker
Build a full accessible scale from #32CD32 in the shade generator.
Hues rotated around #32CD32 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.
LimeGreen sits at 143 degrees. Rotating it a half turn lands on 323 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 LimeGreen at 113 and 173 degrees. They stay close enough to read as the same family, which is what you want for hover states, secondary surfaces and gradients.
143, 263 and 23 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 323 degrees, this pair flanks it at 293 and 353. You keep most of the contrast of a complementary pairing while losing the harshness.
Explore more combinations around LimeGreen on the color wheel.
The biggest shift is under protanopia, where #32CD32 reads as #D5AC2B, 31.7 CIEDE2000 units away. If LimeGreen is the only thing marking a state or a series, roughly one viewer in twelve will miss it.
Protanopia
#D5AC2B
Deuteranopia
#B79A39
Tritanopia
#26C29D
Achromatopsia
#A1A1A1
The nearest CSS keywords to #32CD32, ranked by perceptual distance rather than by how close their hex digits happen to look.