#40DD3B#40DD3B

#40DD3B is a light, highly saturated green. Relative luminance 0.531; OKLCH L 78.7% C 0.237 H 142.6°. Best body text is #000000 at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#40DD3B
RGB	rgb(64, 221, 59)
HSL	hsl(118, 70%, 55%)
HSV	hsv(118, 73%, 87%)
CMYK	cmyk(71%, 0%, 73.3%, 13.3%)
CIE-LAB	lab(77.94, -69.26, 63.81)
CIE-LCH	lch(77.94, 94.17, 137.34°)
OKLab	oklab(78.71% -0.1882 0.1442)
OKLCH	oklch(78.71% 0.237 142.6)
XYZ	xyz(28.7585, 53.1155, 12.8735)
Luminance	0.5312 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40DD3B #D83BDD

analogous

#91DD3B #40DD3B #3BDD87

triadic

#40DD3B #3B40DD #DD3B40

tetradic

#40DD3B #3B91DD #D83BDD #DD873B

square

#40DD3B #3B91DD #D83BDD #DD873B

split-complementary

#40DD3B #873BDD #DD3B91

monochromatic

#1B8617 #25BA20 #40DD3B #73E66F #A6EFA3

Accessibility & contrast

On white

1.81

#40DD3B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.62

#40DD3B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40DD3B

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40DD3B	#FFFFFF	#000000	##000000
##40DD3B	1.00	1.81	11.62	11.62
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.62	21.00	1.00	1.00
##000000	11.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2C81B

Deuteranopia (green-blind)

#D0BC4C

Tritanopia (blue-blind)

#03D6BE

Achromatopsia (no color)

#C1C1C1

Design tokens & code

CSS

--color: #40dd3b;
/* rgb */ color: rgb(64, 221, 59);
/* oklch */ color: oklch(78.7% 0.237 142.6);

Tailwind

colors: {
  custom: {
    50: '#8be97b',
    500: '#40dd3b',
    950: '#000000',
  },
}

SCSS

$custom: #40dd3b;
$custom-light: #8be97b;
$custom-dark: #000000;

JSON

{
  "hex": "#40dd3b",
  "rgb": {
    "r": 64,
    "g": 221,
    "b": 59
  },
  "hsl": {
    "h": 118.148,
    "s": 70.435,
    "l": 54.902
  },
  "oklch": {
    "l": 0.78711,
    "c": 0.23711,
    "h": 142.6
  },
  "luminance": 0.53119
}

Semantic roles & 50–950 ramp

primary

#40DD3B

secondary

#8A308C

accent

#3BEDE8

background

#FCFEFB

surface

#F5FDF2

border

#CFD5CC

text

#0E160A

muted

#7F847D

Preview Lab

Preview with #40DD3B

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

Preview Lab → · Contrast checker → · Palette generator →