#40CB39#40CB39

#40CB39 is a light, highly saturated green. Relative luminance 0.441; OKLCH L 74.0% C 0.219 H 142.4°. Best body text is #000000 at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#40CB39
RGB	rgb(64, 203, 57)
HSL	hsl(117, 58%, 51%)
HSV	hsv(117, 72%, 80%)
CMYK	cmyk(68.5%, 0%, 71.9%, 20.4%)
CIE-LAB	lab(72.29, -63.63, 58.78)
CIE-LCH	lch(72.29, 86.63, 137.27°)
OKLab	oklab(74.02% -0.1731 0.1334)
OKLCH	oklch(74.02% 0.219 142.4)
XYZ	xyz(24.2074, 44.0947, 11.1055)
Luminance	0.4410 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40CB39 #C439CB

analogous

#89CB39 #40CB39 #39CB7B

triadic

#40CB39 #3940CB #CB3940

tetradic

#40CB39 #3989CB #C439CB #CB7B39

square

#40CB39 #3989CB #C439CB #CB7B39

split-complementary

#40CB39 #7B39CB #CB3989

monochromatic

#206D1D #2F9D29 #40CB39 #6FD869 #9EE49A

Accessibility & contrast

On white

2.14

#40CB39 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.82

#40CB39 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40CB39

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40CB39	#FFFFFF	#000000	##000000
##40CB39	1.00	2.14	9.82	9.82
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.82	21.00	1.00	1.00
##000000	9.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B820

Deuteranopia (green-blind)

#BFAD48

Tritanopia (blue-blind)

#1BC5AE

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #40cb39;
/* rgb */ color: rgb(64, 203, 57);
/* oklch */ color: oklch(74.0% 0.219 142.4);

Tailwind

colors: {
  custom: {
    50: '#88dc78',
    500: '#40cb39',
    950: '#000000',
  },
}

SCSS

$custom: #40cb39;
$custom-light: #88dc78;
$custom-dark: #000000;

JSON

{
  "hex": "#40cb39",
  "rgb": {
    "r": 64,
    "g": 203,
    "b": 57
  },
  "hsl": {
    "h": 117.123,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.74018,
    "c": 0.21855,
    "h": 142.4
  },
  "luminance": 0.44097
}

Semantic roles & 50–950 ramp

primary

#40CB39

secondary

#CD90D0

accent

#46E2DA

background

#F9FDF7

surface

#F1FBEE

border

#CBD4C9

text

#0D1509

muted

#7E837B

Preview Lab

Preview with #40CB39

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

Preview Lab → · Contrast checker → · Palette generator →