#A3CA31#A3CA31

#A3CA31 is a light, vivid yellow-green. Relative luminance 0.502; OKLCH L 78.4% C 0.177 H 123.3°. Best body text is #000000 at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#A3CA31
RGB	rgb(163, 202, 49)
HSL	hsl(75, 61%, 49%)
HSV	hsv(75, 76%, 79%)
CMYK	cmyk(19.3%, 0%, 75.7%, 20.8%)
CIE-LAB	lab(76.22, -33.15, 66.81)
CIE-LCH	lch(76.22, 74.58, 116.39°)
OKLab	oklab(78.38% -0.097 0.1475)
OKLCH	oklch(78.38% 0.177 123.3)
XYZ	xyz(36.7796, 50.2491, 10.6665)
Luminance	0.5025 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3CA31 #5831CA

analogous

#CAA531 #A3CA31 #57CA31

triadic

#A3CA31 #31A3CA #CA31A3

tetradic

#A3CA31 #31CAA5 #5831CA #CA3157

square

#A3CA31 #31CAA5 #5831CA #CA3157

split-complementary

#A3CA31 #3157CA #A531CA

monochromatic

#546719 #7B9925 #A3CA31 #BAD860 #CFE491

Accessibility & contrast

On white

1.90

#A3CA31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.05

#A3CA31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3CA31

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3CA31	#FFFFFF	#000000	##000000
##A3CA31	1.00	1.90	11.05	11.05
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.05	21.00	1.00	1.00
##000000	11.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BD08

Deuteranopia (green-blind)

#D1BC40

Tritanopia (blue-blind)

#ABC0AD

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #a3ca31;
/* rgb */ color: rgb(163, 202, 49);
/* oklch */ color: oklch(78.4% 0.177 123.3);

Tailwind

colors: {
  custom: {
    50: '#c2da75',
    500: '#a3ca31',
    950: '#000000',
  },
}

SCSS

$custom: #a3ca31;
$custom-light: #c2da75;
$custom-dark: #000000;

JSON

{
  "hex": "#a3ca31",
  "rgb": {
    "r": 163,
    "g": 202,
    "b": 49
  },
  "hsl": {
    "h": 75.294,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.78375,
    "c": 0.17656,
    "h": 123.3
  },
  "luminance": 0.50249
}

Semantic roles & 50–950 ramp

primary

#A3CA31

secondary

#3F2E72

accent

#44E46D

background

#FDFEFB

surface

#F9FBF1

border

#D2D4CB

text

#131409

muted

#82837D

Preview Lab

Preview with #A3CA31

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

Preview Lab → · Contrast checker → · Palette generator →