#40B937#40B937

#40B937 is a light, vivid green. Relative luminance 0.361; OKLCH L 69.3% C 0.199 H 142.1°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#40B937
RGB	rgb(64, 185, 55)
HSL	hsl(116, 54%, 47%)
HSV	hsv(116, 70%, 73%)
CMYK	cmyk(65.4%, 0%, 70.3%, 27.5%)
CIE-LAB	lab(66.57, -57.75, 53.61)
CIE-LCH	lch(66.57, 78.80, 137.13°)
OKLab	oklab(69.27% -0.1573 0.1223)
OKLCH	oklch(69.27% 0.199 142.1)
XYZ	xyz(20.1518, 36.0617, 9.5123)
Luminance	0.3606 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B937 #B037B9

analogous

#81B937 #40B937 #37B96F

triadic

#40B937 #3740B9 #B93740

tetradic

#40B937 #3781B9 #B037B9 #B96F37

square

#40B937 #3781B9 #B037B9 #B96F37

split-complementary

#40B937 #6F37B9 #B93781

monochromatic

#1F5B1B #308A29 #40B937 #66CF5E #93DD8D

Accessibility & contrast

On white

2.56

#40B937 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#40B937 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B937

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B937	#FFFFFF	#000000	##000000
##40B937	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA823

Deuteranopia (green-blind)

#AF9E44

Tritanopia (blue-blind)

#27B39F

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b937;
/* rgb */ color: rgb(64, 185, 55);
/* oklch */ color: oklch(69.3% 0.199 142.1);

Tailwind

colors: {
  custom: {
    50: '#84cf75',
    500: '#40b937',
    950: '#000000',
  },
}

SCSS

$custom: #40b937;
$custom-light: #84cf75;
$custom-dark: #000000;

JSON

{
  "hex": "#40b937",
  "rgb": {
    "r": 64,
    "g": 185,
    "b": 55
  },
  "hsl": {
    "h": 115.846,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.69271,
    "c": 0.19926,
    "h": 142.1
  },
  "luminance": 0.36064
}

Semantic roles & 50–950 ramp

primary

#40B937

secondary

#C384C8

accent

#4ADED3

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1409

muted

#7D827B

Preview Lab

Preview with #40B937

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

Preview Lab → · Contrast checker → · Palette generator →