#40B737#40B737

#40B737 is a light, vivid green. Relative luminance 0.352; OKLCH L 68.7% C 0.197 H 142.1°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#40B737
RGB	rgb(64, 183, 55)
HSL	hsl(116, 54%, 47%)
HSV	hsv(116, 70%, 72%)
CMYK	cmyk(65%, 0%, 69.9%, 28.2%)
CIE-LAB	lab(65.93, -57.06, 52.94)
CIE-LCH	lch(65.93, 77.84, 137.14°)
OKLab	oklab(68.74% -0.1554 0.1209)
OKLCH	oklch(68.74% 0.197 142.1)
XYZ	xyz(19.7363, 35.2308, 9.3738)
Luminance	0.3523 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B737 #AE37B7

analogous

#80B737 #40B737 #37B76E

triadic

#40B737 #3740B7 #B73740

tetradic

#40B737 #3780B7 #AE37B7 #B76E37

square

#40B737 #3780B7 #AE37B7 #B76E37

split-complementary

#40B737 #6E37B7 #B73780

monochromatic

#1F591B #308829 #40B737 #65CE5D #92DC8C

Accessibility & contrast

On white

2.61

#40B737 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#40B737 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B737

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B737	#FFFFFF	#000000	##000000
##40B737	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA623

Deuteranopia (green-blind)

#AD9C43

Tritanopia (blue-blind)

#28B19D

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b737;
/* rgb */ color: rgb(64, 183, 55);
/* oklch */ color: oklch(68.7% 0.197 142.1);

Tailwind

colors: {
  custom: {
    50: '#84ce75',
    500: '#40b737',
    950: '#000000',
  },
}

SCSS

$custom: #40b737;
$custom-light: #84ce75;
$custom-dark: #000000;

JSON

{
  "hex": "#40b737",
  "rgb": {
    "r": 64,
    "g": 183,
    "b": 55
  },
  "hsl": {
    "h": 115.781,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.68742,
    "c": 0.19692,
    "h": 142.1
  },
  "luminance": 0.35233
}

Semantic roles & 50–950 ramp

primary

#40B737

secondary

#C283C7

accent

#4BDDD3

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1409

muted

#7D827B

Preview Lab

Preview with #40B737

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

Preview Lab → · Contrast checker → · Palette generator →