#A3C640#A3C640

#A3C640 is a light, vivid yellow-green. Relative luminance 0.485; OKLCH L 77.6% C 0.163 H 122.9°. Best body text is #000000 at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#A3C640
RGB	rgb(163, 198, 64)
HSL	hsl(76, 54%, 51%)
HSV	hsv(76, 68%, 78%)
CMYK	cmyk(17.7%, 0%, 67.7%, 22.4%)
CIE-LAB	lab(75.17, -30.45, 60.47)
CIE-LCH	lch(75.17, 67.71, 116.73°)
OKLab	oklab(77.55% -0.0883 0.1366)
OKLCH	oklch(77.55% 0.163 122.9)
XYZ	xyz(36.2241, 48.5447, 12.3112)
Luminance	0.4854 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3C640 #6340C6

analogous

#C6A640 #A3C640 #60C640

triadic

#A3C640 #40A3C6 #C640A3

tetradic

#A3C640 #40C6A6 #6340C6 #C64060

square

#A3C640 #40C6A6 #6340C6 #C64060

split-complementary

#A3C640 #4060C6 #A640C6

monochromatic

#586C20 #7E9B2E #A3C640 #BAD46F #D0E29E

Accessibility & contrast

On white

1.96

#A3C640 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.71

#A3C640 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3C640

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3C640	#FFFFFF	#000000	##000000
##A3C640	1.00	1.96	10.71	10.71
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.71	21.00	1.00	1.00
##000000	10.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA2C

Deuteranopia (green-blind)

#CDB94B

Tritanopia (blue-blind)

#ABBCAB

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #a3c640;
/* rgb */ color: rgb(163, 198, 64);
/* oklch */ color: oklch(77.6% 0.163 122.9);

Tailwind

colors: {
  custom: {
    50: '#c1d77c',
    500: '#a3c640',
    950: '#000000',
  },
}

SCSS

$custom: #a3c640;
$custom-light: #c1d77c;
$custom-dark: #000000;

JSON

{
  "hex": "#a3c640",
  "rgb": {
    "r": 163,
    "g": 198,
    "b": 64
  },
  "hsl": {
    "h": 75.672,
    "s": 54.032,
    "l": 51.373
  },
  "oklch": {
    "l": 0.77552,
    "c": 0.16263,
    "h": 122.9
  },
  "luminance": 0.48545
}

Semantic roles & 50–950 ramp

primary

#A3C640

secondary

#A393CE

accent

#4ADD71

background

#FCFDF7

surface

#F8FAEE

border

#D1D3C9

text

#13140A

muted

#82837C

Preview Lab

Preview with #A3C640

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

Preview Lab → · Contrast checker → · Palette generator →