#40B140#40B140

#40B140 is a light, vivid green. Relative luminance 0.329; OKLCH L 67.2% C 0.183 H 143.2°. Best body text is #000000 at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#40B140
RGB	rgb(64, 177, 64)
HSL	hsl(120, 47%, 47%)
HSV	hsv(120, 64%, 69%)
CMYK	cmyk(63.8%, 0%, 63.8%, 30.6%)
CIE-LAB	lab(64.08, -54.06, 47.20)
CIE-LCH	lch(64.08, 71.77, 138.87°)
OKLab	oklab(67.24% -0.1468 0.1099)
OKLCH	oklch(67.24% 0.183 143.2)
XYZ	xyz(18.7608, 32.9026, 10.2116)
Luminance	0.3290 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B140 #B140B1

analogous

#79B140 #40B140 #40B179

triadic

#40B140 #4040B1 #B14040

tetradic

#40B140 #4079B1 #B140B1 #B17940

square

#40B140 #4079B1 #B140B1 #B17940

split-complementary

#40B140 #7940B1 #B14079

monochromatic

#1F571F #308430 #40B140 #66C866 #93D893

Accessibility & contrast

On white

2.77

#40B140 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.58

#40B140 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B140

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B140	#FFFFFF	#000000	##000000
##40B140	1.00	2.77	7.58	7.58
#FFFFFF	2.77	1.00	21.00	21.00
#000000	7.58	21.00	1.00	1.00
##000000	7.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A133

Deuteranopia (green-blind)

#A7984A

Tritanopia (blue-blind)

#28AC99

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #40b140;
/* rgb */ color: rgb(64, 177, 64);
/* oklch */ color: oklch(67.2% 0.183 143.2);

Tailwind

colors: {
  custom: {
    50: '#82c979',
    500: '#40b140',
    950: '#000000',
  },
}

SCSS

$custom: #40b140;
$custom-light: #82c979;
$custom-dark: #000000;

JSON

{
  "hex": "#40b140",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.67239,
    "c": 0.18337,
    "h": 143.2
  },
  "luminance": 0.32904
}

Semantic roles & 50–950 ramp

primary

#40B140

secondary

#C389C3

accent

#51D7D7

background

#F8FCF7

surface

#F0F8EE

border

#CBD1C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B140

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

Preview Lab → · Contrast checker → · Palette generator →