#A3F578#A3F578

#A3F578 is a very light, vivid yellow-green. Relative luminance 0.744; OKLCH L 89.0% C 0.178 H 135.9°. Best body text is #000000 at 15.89:1 contrast (WCAG AA passes).

Color values

HEX	#A3F578
RGB	rgb(163, 245, 120)
HSL	hsl(99, 86%, 72%)
HSV	hsv(99, 51%, 96%)
CMYK	cmyk(33.5%, 0%, 51%, 3.9%)
CIE-LAB	lab(89.13, -46.47, 51.94)
CIE-LCH	lch(89.13, 69.69, 131.82°)
OKLab	oklab(89.04% -0.1281 0.1241)
OKLCH	oklch(89.04% 0.178 135.9)
XYZ	xyz(51.1455, 74.4452, 29.4402)
Luminance	0.7445 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Spring Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3F578 #CA78F5

analogous

#E2F578 #A3F578 #78F58C

triadic

#A3F578 #78A3F5 #F578A3

tetradic

#A3F578 #78E2F5 #CA78F5 #F58C78

square

#A3F578 #78E2F5 #CA78F5 #F58C78

split-complementary

#A3F578 #8C78F5 #F578E2

monochromatic

#59E211 #7CF13F #A3F578 #CAF9B1 #ECFDE3

Accessibility & contrast

On white

1.32

#A3F578 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

15.89

#A3F578 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #A3F578

15.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3F578	#FFFFFF	#000000	##000000
##A3F578	1.00	1.32	15.89	15.89
#FFFFFF	1.32	1.00	21.00	21.00
#000000	15.89	21.00	1.00	1.00
##000000	15.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE46D

Deuteranopia (green-blind)

#F1DD80

Tritanopia (blue-blind)

#A1EDD8

Achromatopsia (no color)

#E0E0E0

Design tokens & code

CSS

--color: #a3f578;
/* rgb */ color: rgb(163, 245, 120);
/* oklch */ color: oklch(89.0% 0.178 135.9);

Tailwind

colors: {
  custom: {
    50: '#c2f9a2',
    500: '#a3f578',
    950: '#000000',
  },
}

SCSS

$custom: #a3f578;
$custom-light: #c2f9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#a3f578",
  "rgb": {
    "r": 163,
    "g": 245,
    "b": 120
  },
  "hsl": {
    "h": 99.36,
    "s": 86.207,
    "l": 71.569
  },
  "oklch": {
    "l": 0.8904,
    "c": 0.17834,
    "h": 135.9
  },
  "luminance": 0.74447
}

Semantic roles & 50–950 ramp

primary

#A3F578

secondary

#9F41D0

accent

#03E396

background

#FDFFFC

surface

#F9FFF5

border

#D2D7CF

text

#13170F

muted

#828580

Preview Lab

Preview with #A3F578

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

Preview Lab → · Contrast checker → · Palette generator →