#40D37B#40D37B

#40D37B is a light, vivid green. Relative luminance 0.491; OKLCH L 76.9% C 0.176 H 152.6°. Best body text is #000000 at 10.82:1 contrast (WCAG AA passes).

Color values

HEX#40D37B
RGBrgb(64, 211, 123)
HSLhsl(144, 63%, 54%)
HSVhsv(144, 70%, 83%)
CMYKcmyk(69.7%, 0%, 41.7%, 17.3%)
CIE-LABlab(75.52, -57.93, 32.63)
CIE-LCHlch(75.52, 66.49, 150.61°)
OKLaboklab(76.92% -0.1562 0.0808)
OKLCHoklch(76.92% 0.176 152.6)
XYZxyz(28.9813, 49.1053, 26.6860)
Luminance0.4911 (WCAG relative)
Temperatureneutral
Familygreen

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40D37B #D34098
analogous
#4FD340 #40D37B #40D3C5
triadic
#40D37B #7B40D3 #D37B40
tetradic
#40D37B #404FD3 #D34098 #D3C540
square
#40D37B #404FD3 #D34098 #D3C540
split-complementary
#40D37B #C540D3 #D3404F
monochromatic
#1D7C43 #28AE5E #40D37B #72DE9D #A3EAC0

Accessibility & contrast

On white

1.94
#40D37B on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.82
#40D37B on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D37B
10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40D37B#FFFFFF#000000##000000
##40D37B1.001.9410.8210.82
#FFFFFF1.941.0021.0021.00
#00000010.8221.001.001.00
##00000010.8221.001.001.00

Color blindness preview

Protanopia (red-blind)
#D3C275
Deuteranopia (green-blind)
#C1B581
Tritanopia (blue-blind)
#00D0BD
Achromatopsia (no color)
#BABABA

Design tokens & code

CSS
--color: #40d37b;
/* rgb */ color: rgb(64, 211, 123);
/* oklch */ color: oklch(76.9% 0.176 152.6);
Tailwind
colors: {
  custom: {
    50: '#87e2a2',
    500: '#40d37b',
    950: '#000000',
  },
}
SCSS
$custom: #40d37b;
$custom-light: #87e2a2;
$custom-dark: #000000;
JSON
{
  "hex": "#40d37b",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 123
  },
  "hsl": {
    "h": 144.082,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.76922,
    "c": 0.17584,
    "h": 152.6
  },
  "luminance": 0.49109
}

Semantic roles & 50–950 ramp

primary
#40D37B
secondary
#D798BE
accent
#42A4E6
background
#F9FDFA
surface
#F1FBF3
border
#CBD4CD
text
#0D150F
muted
#7E837F

Preview Lab

Preview with #40D37B

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

Preview Lab → · Contrast checker → · Palette generator →

#40D37B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva