#A3CA37#A3CA37

#A3CA37 is a light, vivid yellow-green. Relative luminance 0.503; OKLCH L 78.4% C 0.173 H 123.5°. Best body text is #000000 at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#A3CA37
RGB	rgb(163, 202, 55)
HSL	hsl(76, 58%, 50%)
HSV	hsv(76, 73%, 79%)
CMYK	cmyk(19.3%, 0%, 72.8%, 20.8%)
CIE-LAB	lab(76.25, -32.85, 64.86)
CIE-LCH	lch(76.25, 72.70, 116.86°)
OKLab	oklab(78.41% -0.0957 0.1444)
OKLCH	oklch(78.41% 0.173 123.5)
XYZ	xyz(36.9148, 50.3032, 11.3784)
Luminance	0.5030 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3CA37 #5E37CA

analogous

#CAA737 #A3CA37 #5ACA37

triadic

#A3CA37 #37A3CA #CA37A3

tetradic

#A3CA37 #37CAA7 #5E37CA #CA375A

square

#A3CA37 #37CAA7 #5E37CA #CA375A

split-complementary

#A3CA37 #375ACA #A737CA

monochromatic

#566A1C #7D9B29 #A3CA37 #B9D767 #D0E498

Accessibility & contrast

On white

1.90

#A3CA37 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.06

#A3CA37 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3CA37

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3CA37	#FFFFFF	#000000	##000000
##A3CA37	1.00	1.90	11.06	11.06
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.06	21.00	1.00	1.00
##000000	11.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6BD1A

Deuteranopia (green-blind)

#D0BC44

Tritanopia (blue-blind)

#ABC0AE

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #a3ca37;
/* rgb */ color: rgb(163, 202, 55);
/* oklch */ color: oklch(78.4% 0.173 123.5);

Tailwind

colors: {
  custom: {
    50: '#c2da78',
    500: '#a3ca37',
    950: '#000000',
  },
}

SCSS

$custom: #a3ca37;
$custom-light: #c2da78;
$custom-dark: #000000;

JSON

{
  "hex": "#a3ca37",
  "rgb": {
    "r": 163,
    "g": 202,
    "b": 55
  },
  "hsl": {
    "h": 75.918,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.78412,
    "c": 0.17322,
    "h": 123.5
  },
  "luminance": 0.50303
}

Semantic roles & 50–950 ramp

primary

#A3CA37

secondary

#433174

accent

#46E170

background

#FDFEFB

surface

#F9FBF1

border

#D2D4CB

text

#131409

muted

#82837D

Preview Lab

Preview with #A3CA37

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

Preview Lab → · Contrast checker → · Palette generator →