#40B643#40B643

#40B643 is a light, vivid green. Relative luminance 0.350; OKLCH L 68.6% C 0.187 H 143.6°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#40B643
RGB	rgb(64, 182, 67)
HSL	hsl(122, 48%, 48%)
HSV	hsv(122, 65%, 71%)
CMYK	cmyk(64.8%, 0%, 63.2%, 28.6%)
CIE-LAB	lab(65.71, -55.52, 47.71)
CIE-LCH	lch(65.71, 73.20, 139.33°)
OKLab	oklab(68.59% -0.1506 0.1112)
OKLCH	oklch(68.59% 0.187 143.6)
XYZ	xyz(19.8542, 34.9491, 11.0086)
Luminance	0.3495 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B643 #B640B3

analogous

#78B640 #40B643 #40B67E

triadic

#40B643 #4340B6 #B64340

tetradic

#40B643 #4078B6 #B640B3 #B67E40

square

#40B643 #4078B6 #B640B3 #B67E40

split-complementary

#40B643 #7E40B6 #B64078

monochromatic

#205B22 #308932 #40B643 #69CA6B #96DA98

Accessibility & contrast

On white

2.63

#40B643 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.99

#40B643 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B643

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B643	#FFFFFF	#000000	##000000
##40B643	1.00	2.63	7.99	7.99
#FFFFFF	2.63	1.00	21.00	21.00
#000000	7.99	21.00	1.00	1.00
##000000	7.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA636

Deuteranopia (green-blind)

#AB9C4D

Tritanopia (blue-blind)

#25B19E

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #40b643;
/* rgb */ color: rgb(64, 182, 67);
/* oklch */ color: oklch(68.6% 0.187 143.6);

Tailwind

colors: {
  custom: {
    50: '#83cd7c',
    500: '#40b643',
    950: '#000000',
  },
}

SCSS

$custom: #40b643;
$custom-light: #83cd7c;
$custom-dark: #000000;

JSON

{
  "hex": "#40b643",
  "rgb": {
    "r": 64,
    "g": 182,
    "b": 67
  },
  "hsl": {
    "h": 121.525,
    "s": 47.967,
    "l": 48.235
  },
  "oklch": {
    "l": 0.68593,
    "c": 0.18726,
    "h": 143.6
  },
  "luminance": 0.34951
}

Semantic roles & 50–950 ramp

primary

#40B643

secondary

#C68CC4

accent

#50D4D8

background

#F8FCF7

surface

#F0F9EE

border

#CBD2C9

text

#0C140A

muted

#7D827C

Preview Lab

Preview with #40B643

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

Preview Lab → · Contrast checker → · Palette generator →