#A3D240#A3D240

#A3D240 is a light, vivid yellow-green. Relative luminance 0.542; OKLCH L 80.3% C 0.177 H 125.8°. Best body text is #000000 at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#A3D240
RGB	rgb(163, 210, 64)
HSL	hsl(79, 62%, 54%)
HSV	hsv(79, 70%, 82%)
CMYK	cmyk(22.4%, 0%, 69.5%, 17.6%)
CIE-LAB	lab(78.61, -36.00, 63.98)
CIE-LCH	lch(78.61, 73.41, 119.37°)
OKLab	oklab(80.33% -0.1036 0.1439)
OKLCH	oklch(80.33% 0.177 125.8)
XYZ	xyz(39.0765, 54.2493, 13.2619)
Luminance	0.5425 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3D240 #6F40D2

analogous

#D2B840 #A3D240 #5AD240

triadic

#A3D240 #40A3D2 #D240A3

tetradic

#A3D240 #40D2B8 #6F40D2 #D2405A

square

#A3D240 #40D2B8 #6F40D2 #D2405A

split-complementary

#A3D240 #405AD2 #B840D2

monochromatic

#5D7B1D #82AC29 #A3D240 #BBDE72 #D3E9A3

Accessibility & contrast

On white

1.77

#A3D240 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.85

#A3D240 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3D240

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3D240	#FFFFFF	#000000	##000000
##A3D240	1.00	1.77	11.85	11.85
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.85	21.00	1.00	1.00
##000000	11.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC428

Deuteranopia (green-blind)

#D7C24C

Tritanopia (blue-blind)

#AAC8B5

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #a3d240;
/* rgb */ color: rgb(163, 210, 64);
/* oklch */ color: oklch(80.3% 0.177 125.8);

Tailwind

colors: {
  custom: {
    50: '#c2e07d',
    500: '#a3d240',
    950: '#000000',
  },
}

SCSS

$custom: #a3d240;
$custom-light: #c2e07d;
$custom-dark: #000000;

JSON

{
  "hex": "#a3d240",
  "rgb": {
    "r": 163,
    "g": 210,
    "b": 64
  },
  "hsl": {
    "h": 79.315,
    "s": 61.864,
    "l": 53.725
  },
  "oklch": {
    "l": 0.80333,
    "c": 0.17733,
    "h": 125.8
  },
  "luminance": 0.5425
}

Semantic roles & 50–950 ramp

primary

#A3D240

secondary

#4D3483

accent

#43E577

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#13150A

muted

#82847D

Preview Lab

Preview with #A3D240

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

Preview Lab → · Contrast checker → · Palette generator →