#A3E663#A3E663

#A3E663 is a very light, vivid yellow-green. Relative luminance 0.653; OKLCH L 85.3% C 0.177 H 131.8°. Best body text is #000000 at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#A3E663
RGB	rgb(163, 230, 99)
HSL	hsl(91, 72%, 65%)
HSV	hsv(91, 57%, 90%)
CMYK	cmyk(29.1%, 0%, 57%, 9.8%)
CIE-LAB	lab(84.63, -42.17, 56.14)
CIE-LCH	lch(84.63, 70.21, 126.91°)
OKLab	oklab(85.31% -0.1177 0.1315)
OKLCH	oklch(85.31% 0.177 131.8)
XYZ	xyz(45.6526, 65.2796, 21.9969)
Luminance	0.6528 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3E663 #A663E6

analogous

#E5E663 #A3E663 #63E665

triadic

#A3E663 #63A3E6 #E663A3

tetradic

#A3E663 #63E5E6 #A663E6 #E66563

square

#A3E663 #63E5E6 #A663E6 #E66563

split-complementary

#A3E663 #6563E6 #E663E5

monochromatic

#66B21D #84DE2E #A3E663 #C2EE98 #E1F7CC

Accessibility & contrast

On white

1.49

#A3E663 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.06

#A3E663 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3E663

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3E663	#FFFFFF	#000000	##000000
##A3E663	1.00	1.49	14.06	14.06
#FFFFFF	1.49	1.00	21.00	21.00
#000000	14.06	21.00	1.00	1.00
##000000	14.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#EFD755

Deuteranopia (green-blind)

#E5D16C

Tritanopia (blue-blind)

#A5DDC9

Achromatopsia (no color)

#D3D3D3

Design tokens & code

CSS

--color: #a3e663;
/* rgb */ color: rgb(163, 230, 99);
/* oklch */ color: oklch(85.3% 0.177 131.8);

Tailwind

colors: {
  custom: {
    50: '#c2ee93',
    500: '#a3e663',
    950: '#000000',
  },
}

SCSS

$custom: #a3e663;
$custom-light: #c2ee93;
$custom-dark: #000000;

JSON

{
  "hex": "#a3e663",
  "rgb": {
    "r": 163,
    "g": 230,
    "b": 99
  },
  "hsl": {
    "h": 90.687,
    "s": 72.376,
    "l": 64.51
  },
  "oklch": {
    "l": 0.85308,
    "c": 0.17651,
    "h": 131.8
  },
  "luminance": 0.65281
}

Semantic roles & 50–950 ramp

primary

#A3E663

secondary

#783BB3

accent

#11D475

background

#FDFFFC

surface

#F9FEF4

border

#D2D6CE

text

#13160D

muted

#82857F

Preview Lab

Preview with #A3E663

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

Preview Lab → · Contrast checker → · Palette generator →