#A4D539#A4D539

#A4D539 is a light, vivid yellow-green. Relative luminance 0.558; OKLCH L 81.0% C 0.185 H 125.8°. Best body text is #000000 at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#A4D539
RGB	rgb(164, 213, 57)
HSL	hsl(79, 65%, 53%)
HSV	hsv(79, 73%, 84%)
CMYK	cmyk(23%, 0%, 73.2%, 16.5%)
CIE-LAB	lab(79.49, -37.37, 67.33)
CIE-LCH	lch(79.49, 77.01, 119.03°)
OKLab	oklab(81.05% -0.108 0.1499)
OKLCH	oklch(81.05% 0.185 125.8)
XYZ	xyz(39.8429, 55.7758, 12.5368)
Luminance	0.5578 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4D539 #6A39D5

analogous

#D5B839 #A4D539 #56D539

triadic

#A4D539 #39A4D5 #D539A4

tetradic

#A4D539 #39D5B8 #6A39D5 #D53956

square

#A4D539 #39D5B8 #6A39D5 #D53956

split-complementary

#A4D539 #3956D5 #B839D5

monochromatic

#5C7A1A #82AC25 #A4D539 #BBE06B #D2EA9E

Accessibility & contrast

On white

1.73

#A4D539 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.16

#A4D539 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A4D539

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4D539	#FFFFFF	#000000	##000000
##A4D539	1.00	1.73	12.16	12.16
#FFFFFF	1.73	1.00	21.00	21.00
#000000	12.16	21.00	1.00	1.00
##000000	12.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0C719

Deuteranopia (green-blind)

#DAC447

Tritanopia (blue-blind)

#ABCBB7

Achromatopsia (no color)

#C5C5C5

Design tokens & code

CSS

--color: #a4d539;
/* rgb */ color: rgb(164, 213, 57);
/* oklch */ color: oklch(81.0% 0.185 125.8);

Tailwind

colors: {
  custom: {
    50: '#c3e27a',
    500: '#a4d539',
    950: '#000000',
  },
}

SCSS

$custom: #a4d539;
$custom-light: #c3e27a;
$custom-dark: #000000;

JSON

{
  "hex": "#a4d539",
  "rgb": {
    "r": 164,
    "g": 213,
    "b": 57
  },
  "hsl": {
    "h": 78.846,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.81047,
    "c": 0.18473,
    "h": 125.8
  },
  "luminance": 0.55776
}

Semantic roles & 50–950 ramp

primary

#A4D539

secondary

#4A3182

accent

#40E875

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#13150A

muted

#82847D

Preview Lab

Preview with #A4D539

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

Preview Lab → · Contrast checker → · Palette generator →