#40B537#40B537

#40B537 is a light, vivid green. Relative luminance 0.344; OKLCH L 68.2% C 0.195 H 142.1°. Best body text is #000000 at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#40B537
RGB	rgb(64, 181, 55)
HSL	hsl(116, 53%, 46%)
HSV	hsv(116, 70%, 71%)
CMYK	cmyk(64.6%, 0%, 69.6%, 29%)
CIE-LAB	lab(65.29, -56.36, 52.27)
CIE-LCH	lch(65.29, 76.87, 137.16°)
OKLab	oklab(68.21% -0.1535 0.1195)
OKLCH	oklch(68.21% 0.195 142.1)
XYZ	xyz(19.3268, 34.4116, 9.2373)
Luminance	0.3441 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B537 #AC37B5

analogous

#7FB537 #40B537 #37B56D

triadic

#40B537 #3740B5 #B53740

tetradic

#40B537 #377FB5 #AC37B5 #B56D37

square

#40B537 #377FB5 #AC37B5 #B56D37

split-complementary

#40B537 #6D37B5 #B5377F

monochromatic

#1F571A #2F8629 #40B537 #64CD5C #91DC8B

Accessibility & contrast

On white

2.66

#40B537 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.88

#40B537 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B537

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B537	#FFFFFF	#000000	##000000
##40B537	1.00	2.66	7.88	7.88
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.88	21.00	1.00	1.00
##000000	7.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A424

Deuteranopia (green-blind)

#AB9B43

Tritanopia (blue-blind)

#29B09C

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b537;
/* rgb */ color: rgb(64, 181, 55);
/* oklch */ color: oklch(68.2% 0.195 142.1);

Tailwind

colors: {
  custom: {
    50: '#83cc75',
    500: '#40b537',
    950: '#000000',
  },
}

SCSS

$custom: #40b537;
$custom-light: #83cc75;
$custom-dark: #000000;

JSON

{
  "hex": "#40b537",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 55
  },
  "hsl": {
    "h": 115.714,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.68212,
    "c": 0.19457,
    "h": 142.1
  },
  "luminance": 0.34414
}

Semantic roles & 50–950 ramp

primary

#40B537

secondary

#C182C6

accent

#4BDDD2

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B537

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

Preview Lab → · Contrast checker → · Palette generator →