#A3EF57#A3EF57

#A3EF57 is a very light, vivid yellow-green. Relative luminance 0.702; OKLCH L 87.3% C 0.198 H 132.0°. Best body text is #000000 at 15.04:1 contrast (WCAG AA passes).

Color values

HEX	#A3EF57
RGB	rgb(163, 239, 87)
HSL	hsl(90, 83%, 64%)
HSV	hsv(90, 64%, 94%)
CMYK	cmyk(31.8%, 0%, 63.6%, 6.3%)
CIE-LAB	lab(87.10, -47.07, 63.96)
CIE-LCH	lch(87.10, 79.42, 126.35°)
OKLab	oklab(87.28% -0.1321 0.1469)
OKLCH	oklch(87.28% 0.198 132)
XYZ	xyz(47.6905, 70.2060, 20.0534)
Luminance	0.7021 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3EF57 #A357EF

analogous

#EFEF57 #A3EF57 #57EF57

triadic

#A3EF57 #57A3EF #EF57A3

tetradic

#A3EF57 #57EFEF #A357EF #EF5757

square

#A3EF57 #57EFEF #A357EF #EF5757

split-complementary

#A3EF57 #5757EF #EF57EF

monochromatic

#66BA12 #84EA1F #A3EF57 #C2F48F #E0FAC7

Accessibility & contrast

On white

1.40

#A3EF57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.04

#A3EF57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3EF57

15.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3EF57	#FFFFFF	#000000	##000000
##A3EF57	1.00	1.40	15.04	15.04
#FFFFFF	1.40	1.00	21.00	21.00
#000000	15.04	21.00	1.00	1.00
##000000	15.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F9DE44

Deuteranopia (green-blind)

#EED863

Tritanopia (blue-blind)

#A5E6D0

Achromatopsia (no color)

#DADADA

Design tokens & code

CSS

--color: #a3ef57;
/* rgb */ color: rgb(163, 239, 87);
/* oklch */ color: oklch(87.3% 0.198 132.0);

Tailwind

colors: {
  custom: {
    50: '#c3f48d',
    500: '#a3ef57',
    950: '#000000',
  },
}

SCSS

$custom: #a3ef57;
$custom-light: #c3f48d;
$custom-dark: #000000;

JSON

{
  "hex": "#a3ef57",
  "rgb": {
    "r": 163,
    "g": 239,
    "b": 87
  },
  "hsl": {
    "h": 90,
    "s": 82.609,
    "l": 63.922
  },
  "oklch": {
    "l": 0.87281,
    "c": 0.19758,
    "h": 132
  },
  "luminance": 0.70208
}

Semantic roles & 50–950 ramp

primary

#A3EF57

secondary

#7531B9

accent

#06DF73

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#13170D

muted

#82857F

Preview Lab

Preview with #A3EF57

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →