#A4D840#A4D840

#A4D840 is a light, vivid yellow-green. Relative luminance 0.574; OKLCH L 81.8% C 0.184 H 126.7°. Best body text is #000000 at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#A4D840
RGB	rgb(164, 216, 64)
HSL	hsl(81, 66%, 55%)
HSV	hsv(81, 70%, 85%)
CMYK	cmyk(24.1%, 0%, 70.4%, 15.3%)
CIE-LAB	lab(80.39, -38.32, 65.79)
CIE-LCH	lch(80.39, 76.14, 120.22°)
OKLab	oklab(81.79% -0.11 0.1477)
OKLCH	oklch(81.79% 0.184 126.7)
XYZ	xyz(40.7913, 57.3737, 13.7746)
Luminance	0.5737 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4D840 #7440D8

analogous

#D8C040 #A4D840 #58D840

triadic

#A4D840 #40A4D8 #D840A4

tetradic

#A4D840 #40D8C0 #7440D8 #D84058

square

#A4D840 #40D8C0 #7440D8 #D84058

split-complementary

#A4D840 #4058D8 #C040D8

monochromatic

#5F831B #84B625 #A4D840 #BCE273 #D4EDA6

Accessibility & contrast

On white

1.68

#A4D840 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.47

#A4D840 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A4D840

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4D840	#FFFFFF	#000000	##000000
##A4D840	1.00	1.68	12.47	12.47
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.47	21.00	1.00	1.00
##000000	12.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3CA26

Deuteranopia (green-blind)

#DCC74D

Tritanopia (blue-blind)

#AACEBA

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #a4d840;
/* rgb */ color: rgb(164, 216, 64);
/* oklch */ color: oklch(81.8% 0.184 126.7);

Tailwind

colors: {
  custom: {
    50: '#c3e47e',
    500: '#a4d840',
    950: '#000000',
  },
}

SCSS

$custom: #a4d840;
$custom-light: #c3e47e;
$custom-dark: #000000;

JSON

{
  "hex": "#a4d840",
  "rgb": {
    "r": 164,
    "g": 216,
    "b": 64
  },
  "hsl": {
    "h": 80.526,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.81793,
    "c": 0.18417,
    "h": 126.7
  },
  "luminance": 0.57374
}

Semantic roles & 50–950 ramp

primary

#A4D840

secondary

#50338A

accent

#3FE979

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#13150B

muted

#82847E

Preview Lab

Preview with #A4D840

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

Preview Lab → · Contrast checker → · Palette generator →