#40D37F#40D37F

#40D37F is a light, vivid green. Relative luminance 0.492; OKLCH L 77.0% C 0.172 H 153.7°. Best body text is #000000 at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#40D37F
RGB	rgb(64, 211, 127)
HSL	hsl(146, 63%, 54%)
HSV	hsv(146, 70%, 83%)
CMYK	cmyk(69.7%, 0%, 39.8%, 17.3%)
CIE-LAB	lab(75.58, -57.22, 30.67)
CIE-LCH	lch(75.58, 64.92, 151.81°)
OKLab	oklab(77% -0.1544 0.0763)
OKLCH	oklch(77% 0.172 153.7)
XYZ	xyz(29.2368, 49.2076, 28.0317)
Luminance	0.4921 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D37F #D34094

analogous

#4BD340 #40D37F #40D3C8

triadic

#40D37F #7F40D3 #D37F40

tetradic

#40D37F #404BD3 #D34094 #D3C840

square

#40D37F #404BD3 #D34094 #D3C840

split-complementary

#40D37F #C840D3 #D3404B

monochromatic

#1D7C45 #28AE61 #40D37F #72DEA0 #A3EAC2

Accessibility & contrast

On white

1.94

#40D37F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.84

#40D37F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D37F

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D37F	#FFFFFF	#000000	##000000
##40D37F	1.00	1.94	10.84	10.84
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.84	21.00	1.00	1.00
##000000	10.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3C279

Deuteranopia (green-blind)

#C1B585

Tritanopia (blue-blind)

#00D0BE

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #40d37f;
/* rgb */ color: rgb(64, 211, 127);
/* oklch */ color: oklch(77.0% 0.172 153.7);

Tailwind

colors: {
  custom: {
    50: '#87e2a5',
    500: '#40d37f',
    950: '#000000',
  },
}

SCSS

$custom: #40d37f;
$custom-light: #87e2a5;
$custom-dark: #000000;

JSON

{
  "hex": "#40d37f",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 127
  },
  "hsl": {
    "h": 145.714,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.76995,
    "c": 0.17222,
    "h": 153.7
  },
  "luminance": 0.49211
}

Semantic roles & 50–950 ramp

primary

#40D37F

secondary

#D798BC

accent

#42A0E6

background

#F9FDFA

surface

#F1FBF4

border

#CBD4CE

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #40D37F

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

Preview Lab → · Contrast checker → · Palette generator →