#A3D440#A3D440

#A3D440 is a light, vivid yellow-green. Relative luminance 0.552; OKLCH L 80.8% C 0.180 H 126.2°. Best body text is #000000 at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#A3D440
RGB	rgb(163, 212, 64)
HSL	hsl(80, 63%, 54%)
HSV	hsv(80, 70%, 83%)
CMYK	cmyk(23.1%, 0%, 69.8%, 16.9%)
CIE-LAB	lab(79.18, -36.91, 64.56)
CIE-LCH	lch(79.18, 74.36, 119.76°)
OKLab	oklab(80.8% -0.1061 0.1451)
OKLCH	oklch(80.8% 0.18 126.2)
XYZ	xyz(39.5733, 55.2431, 13.4276)
Luminance	0.5524 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3D440 #7140D4

analogous

#D4BB40 #A3D440 #59D440

triadic

#A3D440 #40A3D4 #D440A3

tetradic

#A3D440 #40D4BB #7140D4 #D44059

square

#A3D440 #40D4BB #7140D4 #D44059

split-complementary

#A3D440 #4059D4 #BB40D4

monochromatic

#5D7D1C #82AF27 #A3D440 #BBDF72 #D3EAA4

Accessibility & contrast

On white

1.74

#A3D440 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.05

#A3D440 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3D440

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3D440	#FFFFFF	#000000	##000000
##A3D440	1.00	1.74	12.05	12.05
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.05	21.00	1.00	1.00
##000000	12.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFC628

Deuteranopia (green-blind)

#D8C34D

Tritanopia (blue-blind)

#AACAB7

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #a3d440;
/* rgb */ color: rgb(163, 212, 64);
/* oklch */ color: oklch(80.8% 0.180 126.2);

Tailwind

colors: {
  custom: {
    50: '#c2e17e',
    500: '#a3d440',
    950: '#000000',
  },
}

SCSS

$custom: #a3d440;
$custom-light: #c2e17e;
$custom-dark: #000000;

JSON

{
  "hex": "#a3d440",
  "rgb": {
    "r": 163,
    "g": 212,
    "b": 64
  },
  "hsl": {
    "h": 79.865,
    "s": 63.248,
    "l": 54.118
  },
  "oklch": {
    "l": 0.80798,
    "c": 0.17978,
    "h": 126.2
  },
  "luminance": 0.55244
}

Semantic roles & 50–950 ramp

primary

#A3D440

secondary

#4E3385

accent

#42E678

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#13150A

muted

#82847D

Preview Lab

Preview with #A3D440

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

Preview Lab → · Contrast checker → · Palette generator →