#A3D540#A3D540

#A3D540 is a light, vivid yellow-green. Relative luminance 0.557; OKLCH L 81.0% C 0.181 H 126.4°. Best body text is #000000 at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#A3D540
RGB	rgb(163, 213, 64)
HSL	hsl(80, 64%, 54%)
HSV	hsv(80, 70%, 84%)
CMYK	cmyk(23.5%, 0%, 70%, 16.5%)
CIE-LAB	lab(79.47, -37.36, 64.84)
CIE-LCH	lch(79.47, 74.83, 119.95°)
OKLab	oklab(81.03% -0.1073 0.1457)
OKLCH	oklch(81.03% 0.181 126.4)
XYZ	xyz(39.8241, 55.7446, 13.5112)
Luminance	0.5575 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3D540 #7240D5

analogous

#D5BC40 #A3D540 #59D540

triadic

#A3D540 #40A3D5 #D540A3

tetradic

#A3D540 #40D5BC #7240D5 #D54059

square

#A3D540 #40D5BC #7240D5 #D54059

split-complementary

#A3D540 #4059D5 #BC40D5

monochromatic

#5E7F1C #83B127 #A3D540 #BBE072 #D3EBA4

Accessibility & contrast

On white

1.73

#A3D540 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.15

#A3D540 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3D540

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3D540	#FFFFFF	#000000	##000000
##A3D540	1.00	1.73	12.15	12.15
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.15	21.00	1.00	1.00
##000000	12.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C727

Deuteranopia (green-blind)

#D9C44D

Tritanopia (blue-blind)

#AACBB8

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #a3d540;
/* rgb */ color: rgb(163, 213, 64);
/* oklch */ color: oklch(81.0% 0.181 126.4);

Tailwind

colors: {
  custom: {
    50: '#c2e27e',
    500: '#a3d540',
    950: '#000000',
  },
}

SCSS

$custom: #a3d540;
$custom-light: #c2e27e;
$custom-dark: #000000;

JSON

{
  "hex": "#a3d540",
  "rgb": {
    "r": 163,
    "g": 213,
    "b": 64
  },
  "hsl": {
    "h": 80.134,
    "s": 63.948,
    "l": 54.314
  },
  "oklch": {
    "l": 0.81031,
    "c": 0.18099,
    "h": 126.4
  },
  "luminance": 0.55745
}

Semantic roles & 50–950 ramp

primary

#A3D540

secondary

#4F3386

accent

#41E779

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#13150A

muted

#82847D

Preview Lab

Preview with #A3D540

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

Preview Lab → · Contrast checker → · Palette generator →