#A3D128#A3D128

#A3D128 is a light, vivid yellow-green. Relative luminance 0.535; OKLCH L 80.0% C 0.189 H 124.7°. Best body text is #000000 at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#A3D128
RGB	rgb(163, 209, 40)
HSL	hsl(76, 68%, 49%)
HSV	hsv(76, 81%, 82%)
CMYK	cmyk(22%, 0%, 80.9%, 18%)
CIE-LAB	lab(78.19, -36.73, 71.20)
CIE-LCH	lch(78.19, 80.12, 117.29°)
OKLab	oklab(79.96% -0.1074 0.1554)
OKLCH	oklch(79.96% 0.189 124.7)
XYZ	xyz(38.2881, 53.5402, 10.3242)
Luminance	0.5354 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3D128 #5628D1

analogous

#D1AB28 #A3D128 #4FD128

triadic

#A3D128 #28A3D1 #D128A3

tetradic

#A3D128 #28D1AB #5628D1 #D1284F

square

#A3D128 #28D1AB #5628D1 #D1284F

split-complementary

#A3D128 #284FD1 #AB28D1

monochromatic

#536A14 #7B9E1E #A3D128 #BADF57 #CFE98B

Accessibility & contrast

On white

1.79

#A3D128 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.71

#A3D128 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3D128

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3D128	#FFFFFF	#000000	##000000
##A3D128	1.00	1.79	11.71	11.71
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.71	21.00	1.00	1.00
##000000	11.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC300

Deuteranopia (green-blind)

#D7C13B

Tritanopia (blue-blind)

#ABC6B3

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #a3d128;
/* rgb */ color: rgb(163, 209, 40);
/* oklch */ color: oklch(80.0% 0.189 124.7);

Tailwind

colors: {
  custom: {
    50: '#c3df72',
    500: '#a3d128',
    950: '#000000',
  },
}

SCSS

$custom: #a3d128;
$custom-light: #c3df72;
$custom-dark: #000000;

JSON

{
  "hex": "#a3d128",
  "rgb": {
    "r": 163,
    "g": 209,
    "b": 40
  },
  "hsl": {
    "h": 76.331,
    "s": 67.871,
    "l": 48.824
  },
  "oklch": {
    "l": 0.79957,
    "c": 0.18888,
    "h": 124.7
  },
  "luminance": 0.53541
}

Semantic roles & 50–950 ramp

primary

#A3D128

secondary

#3E2974

accent

#3DEB6C

background

#FEFEFB

surface

#FAFCF1

border

#D3D5CB

text

#131509

muted

#83847D

Preview Lab

Preview with #A3D128

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

Preview Lab → · Contrast checker → · Palette generator →