#40B839#40B839

#40B839 is a light, vivid green. Relative luminance 0.357; OKLCH L 69.0% C 0.197 H 142.3°. Best body text is #000000 at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#40B839
RGB	rgb(64, 184, 57)
HSL	hsl(117, 53%, 47%)
HSV	hsv(117, 69%, 72%)
CMYK	cmyk(65.2%, 0%, 69%, 27.8%)
CIE-LAB	lab(66.26, -57.22, 52.51)
CIE-LCH	lch(66.26, 77.66, 137.46°)
OKLab	oklab(69.02% -0.1558 0.1203)
OKLCH	oklch(69.02% 0.197 142.3)
XYZ	xyz(19.9922, 35.6644, 9.7004)
Luminance	0.3567 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B839 #B139B8

analogous

#80B839 #40B839 #39B872

triadic

#40B839 #3940B8 #B83940

tetradic

#40B839 #3980B8 #B139B8 #B87239

square

#40B839 #3980B8 #B139B8 #B87239

split-complementary

#40B839 #7239B8 #B83980

monochromatic

#1F5B1C #30892B #40B839 #66CE60 #93DC8F

Accessibility & contrast

On white

2.58

#40B839 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.13

#40B839 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B839

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B839	#FFFFFF	#000000	##000000
##40B839	1.00	2.58	8.13	8.13
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.13	21.00	1.00	1.00
##000000	8.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCA726

Deuteranopia (green-blind)

#AE9D45

Tritanopia (blue-blind)

#27B39E

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b839;
/* rgb */ color: rgb(64, 184, 57);
/* oklch */ color: oklch(69.0% 0.197 142.3);

Tailwind

colors: {
  custom: {
    50: '#84ce76',
    500: '#40b839',
    950: '#000000',
  },
}

SCSS

$custom: #40b839;
$custom-light: #84ce76;
$custom-dark: #000000;

JSON

{
  "hex": "#40b839",
  "rgb": {
    "r": 64,
    "g": 184,
    "b": 57
  },
  "hsl": {
    "h": 116.693,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.69024,
    "c": 0.19679,
    "h": 142.3
  },
  "luminance": 0.35666
}

Semantic roles & 50–950 ramp

primary

#40B839

secondary

#C386C7

accent

#4CDCD4

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1409

muted

#7D827B

Preview Lab

Preview with #40B839

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

Preview Lab → · Contrast checker → · Palette generator →