#40BB37#40BB37

#40BB37 is a light, highly saturated green. Relative luminance 0.369; OKLCH L 69.8% C 0.202 H 142.1°. Best body text is #000000 at 8.38:1 contrast (WCAG AA passes).

Color values

HEX#40BB37
RGBrgb(64, 187, 55)
HSLhsl(116, 55%, 47%)
HSVhsv(116, 71%, 73%)
CMYKcmyk(65.8%, 0%, 70.6%, 26.7%)
CIE-LABlab(67.21, -58.43, 54.28)
CIE-LCHlch(67.21, 79.75, 137.11°)
OKLaboklab(69.8% -0.1591 0.1237)
OKLCHoklch(69.8% 0.202 142.1)
XYZxyz(20.5731, 36.9044, 9.6527)
Luminance0.3691 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40BB37 #B237BB
analogous
#82BB37 #40BB37 #37BB70
triadic
#40BB37 #3740BB #BB3740
tetradic
#40BB37 #3782BB #B237BB #BB7037
square
#40BB37 #3782BB #B237BB #BB7037
split-complementary
#40BB37 #7037BB #BB3782
monochromatic
#205C1B #308C29 #40BB37 #67D05F #94DE8E

Accessibility & contrast

On white

2.51
#40BB37 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

8.38
#40BB37 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BB37
8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40BB37#FFFFFF#000000##000000
##40BB371.002.518.388.38
#FFFFFF2.511.0021.0021.00
#0000008.3821.001.001.00
##0000008.3821.001.001.00

Color blindness preview

Protanopia (red-blind)
#BFAA22
Deuteranopia (green-blind)
#B1A044
Tritanopia (blue-blind)
#26B5A1
Achromatopsia (no color)
#A4A4A4

Design tokens & code

CSS
--color: #40bb37;
/* rgb */ color: rgb(64, 187, 55);
/* oklch */ color: oklch(69.8% 0.202 142.1);
Tailwind
colors: {
  custom: {
    50: '#85d175',
    500: '#40bb37',
    950: '#000000',
  },
}
SCSS
$custom: #40bb37;
$custom-light: #85d175;
$custom-dark: #000000;
JSON
{
  "hex": "#40bb37",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 55
  },
  "hsl": {
    "h": 115.909,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.69799,
    "c": 0.20159,
    "h": 142.1
  },
  "luminance": 0.36906
}

Semantic roles & 50–950 ramp

primary
#40BB37
secondary
#C485C9
accent
#4ADED4
background
#F8FCF7
surface
#F0F9ED
border
#CBD2C8
text
#0C1409
muted
#7D827B

Preview Lab

Preview with #40BB37

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

Preview Lab → · Contrast checker → · Palette generator →

#40BB37 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva