#40B037#40B037

#40B037 is a light, vivid green. Relative luminance 0.324; OKLCH L 66.9% C 0.189 H 142.1°. Best body text is #000000 at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#40B037
RGB	rgb(64, 176, 55)
HSL	hsl(116, 52%, 45%)
HSV	hsv(116, 69%, 69%)
CMYK	cmyk(63.6%, 0%, 68.8%, 31%)
CIE-LAB	lab(63.68, -54.60, 50.57)
CIE-LCH	lch(63.68, 74.42, 137.19°)
OKLab	oklab(66.88% -0.1488 0.116)
OKLCH	oklch(66.88% 0.189 142.1)
XYZ	xyz(18.3283, 32.4147, 8.9045)
Luminance	0.3242 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B037 #A737B0

analogous

#7DB037 #40B037 #37B06A

triadic

#40B037 #3740B0 #B03740

tetradic

#40B037 #377DB0 #A737B0 #B06A37

square

#40B037 #377DB0 #A737B0 #B06A37

split-complementary

#40B037 #6A37B0 #B0377D

monochromatic

#1E531A #2F8128 #40B037 #62CB59 #8EDA88

Accessibility & contrast

On white

2.81

#40B037 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.48

#40B037 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B037

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B037	#FFFFFF	#000000	##000000
##40B037	1.00	2.81	7.48	7.48
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.48	21.00	1.00	1.00
##000000	7.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A026

Deuteranopia (green-blind)

#A69742

Tritanopia (blue-blind)

#2BAB98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40b037;
/* rgb */ color: rgb(64, 176, 55);
/* oklch */ color: oklch(66.9% 0.189 142.1);

Tailwind

colors: {
  custom: {
    50: '#83c974',
    500: '#40b037',
    950: '#000000',
  },
}

SCSS

$custom: #40b037;
$custom-light: #83c974;
$custom-dark: #000000;

JSON

{
  "hex": "#40b037",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 55
  },
  "hsl": {
    "h": 115.537,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.66885,
    "c": 0.18862,
    "h": 142.1
  },
  "luminance": 0.32416
}

Semantic roles & 50–950 ramp

primary

#40B037

secondary

#BF7FC4

accent

#4CDCD1

background

#F8FCF7

surface

#F0F8ED

border

#CBD1C8

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B037

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

Preview Lab → · Contrast checker → · Palette generator →