#A3CA39#A3CA39

#A3CA39 is a light, vivid yellow-green. Relative luminance 0.503; OKLCH L 78.4% C 0.172 H 123.6°. Best body text is #000000 at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#A3CA39
RGB	rgb(163, 202, 57)
HSL	hsl(76, 58%, 51%)
HSV	hsv(76, 72%, 79%)
CMYK	cmyk(19.3%, 0%, 71.8%, 20.8%)
CIE-LAB	lab(76.27, -32.74, 64.17)
CIE-LCH	lch(76.27, 72.04, 117.03°)
OKLab	oklab(78.43% -0.0953 0.1432)
OKLCH	oklch(78.43% 0.172 123.6)
XYZ	xyz(36.9637, 50.3227, 11.6360)
Luminance	0.5032 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3CA39 #6039CA

analogous

#CAA839 #A3CA39 #5ACA39

triadic

#A3CA39 #39A3CA #CA39A3

tetradic

#A3CA39 #39CAA8 #6039CA #CA395A

square

#A3CA39 #39CAA8 #6039CA #CA395A

split-complementary

#A3CA39 #395ACA #A839CA

monochromatic

#576C1D #7D9C2A #A3CA39 #B9D769 #D0E49A

Accessibility & contrast

On white

1.90

#A3CA39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.06

#A3CA39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3CA39

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3CA39	#FFFFFF	#000000	##000000
##A3CA39	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)

#D6BD1E

Deuteranopia (green-blind)

#D0BC46

Tritanopia (blue-blind)

#ABC0AE

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #a3ca39;
/* rgb */ color: rgb(163, 202, 57);
/* oklch */ color: oklch(78.4% 0.172 123.6);

Tailwind

colors: {
  custom: {
    50: '#c2da79',
    500: '#a3ca39',
    950: '#000000',
  },
}

SCSS

$custom: #a3ca39;
$custom-light: #c2da79;
$custom-dark: #000000;

JSON

{
  "hex": "#a3ca39",
  "rgb": {
    "r": 163,
    "g": 202,
    "b": 57
  },
  "hsl": {
    "h": 76.138,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.78425,
    "c": 0.17203,
    "h": 123.6
  },
  "luminance": 0.50323
}

Semantic roles & 50–950 ramp

primary

#A3CA39

secondary

#443275

accent

#47E170

background

#FDFEFB

surface

#F9FBF2

border

#D2D4CC

text

#13140A

muted

#82837D

Preview Lab

Preview with #A3CA39

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

Preview Lab → · Contrast checker → · Palette generator →