#A4D638#A4D638

#A4D638 is a light, vivid yellow-green. Relative luminance 0.563; OKLCH L 81.3% C 0.186 H 125.9°. Best body text is #000000 at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#A4D638
RGB	rgb(164, 214, 56)
HSL	hsl(79, 66%, 53%)
HSV	hsv(79, 74%, 84%)
CMYK	cmyk(23.4%, 0%, 73.8%, 16.1%)
CIE-LAB	lab(79.77, -37.88, 67.94)
CIE-LCH	lch(79.77, 77.78, 119.14°)
OKLab	oklab(81.27% -0.1095 0.151)
OKLCH	oklch(81.27% 0.186 125.9)
XYZ	xyz(40.0705, 56.2706, 12.4908)
Luminance	0.5627 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4D638 #6A38D6

analogous

#D6B938 #A4D638 #55D638

triadic

#A4D638 #38A4D6 #D638A4

tetradic

#A4D638 #38D6B9 #6A38D6 #D63855

square

#A4D638 #38D6B9 #6A38D6 #D63855

split-complementary

#A4D638 #3855D6 #B938D6

monochromatic

#5C7A19 #82AD24 #A4D638 #BBE06B #D2EB9D

Accessibility & contrast

On white

1.71

#A4D638 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.25

#A4D638 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A4D638

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4D638	#FFFFFF	#000000	##000000
##A4D638	1.00	1.71	12.25	12.25
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.25	21.00	1.00	1.00
##000000	12.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1C816

Deuteranopia (green-blind)

#DBC547

Tritanopia (blue-blind)

#ABCCB8

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #a4d638;
/* rgb */ color: rgb(164, 214, 56);
/* oklch */ color: oklch(81.3% 0.186 125.9);

Tailwind

colors: {
  custom: {
    50: '#c3e27a',
    500: '#a4d638',
    950: '#000000',
  },
}

SCSS

$custom: #a4d638;
$custom-light: #c3e27a;
$custom-dark: #000000;

JSON

{
  "hex": "#a4d638",
  "rgb": {
    "r": 164,
    "g": 214,
    "b": 56
  },
  "hsl": {
    "h": 78.987,
    "s": 65.833,
    "l": 52.941
  },
  "oklch": {
    "l": 0.81274,
    "c": 0.18648,
    "h": 125.9
  },
  "luminance": 0.56271
}

Semantic roles & 50–950 ramp

primary

#A4D638

secondary

#4A3082

accent

#3FE975

background

#FDFEFB

surface

#F9FCF2

border

#D2D5CC

text

#13150A

muted

#82847D

Preview Lab

Preview with #A4D638

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

Preview Lab → · Contrast checker → · Palette generator →