#40D188#40D188

#40D188 is a light, vivid green. Relative luminance 0.485; OKLCH L 76.7% C 0.162 H 156.7°. Best body text is #000000 at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#40D188
RGB	rgb(64, 209, 136)
HSL	hsl(150, 61%, 54%)
HSV	hsv(150, 69%, 82%)
CMYK	cmyk(69.4%, 0%, 34.9%, 18%)
CIE-LAB	lab(75.12, -54.77, 25.39)
CIE-LCH	lch(75.12, 60.37, 155.13°)
OKLab	oklab(76.66% -0.1484 0.0639)
OKLCH	oklch(76.66% 0.162 156.7)
XYZ	xyz(29.3560, 48.4652, 31.0954)
Luminance	0.4847 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D188 #D14089

analogous

#40D140 #40D188 #40D1D0

triadic

#40D188 #8840D1 #D18840

tetradic

#40D188 #4040D1 #D14089 #D1D040

square

#40D188 #4040D1 #D14089 #D1D040

split-complementary

#40D188 #D040D1 #D14040

monochromatic

#1D794B #29AB69 #40D188 #71DDA7 #A3E9C5

Accessibility & contrast

On white

1.96

#40D188 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.69

#40D188 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D188

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D188	#FFFFFF	#000000	##000000
##40D188	1.00	1.96	10.69	10.69
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.69	21.00	1.00	1.00
##000000	10.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0C183

Deuteranopia (green-blind)

#BDB48D

Tritanopia (blue-blind)

#00CFBE

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #40d188;
/* rgb */ color: rgb(64, 209, 136);
/* oklch */ color: oklch(76.7% 0.162 156.7);

Tailwind

colors: {
  custom: {
    50: '#87e0ab',
    500: '#40d188',
    950: '#000000',
  },
}

SCSS

$custom: #40d188;
$custom-light: #87e0ab;
$custom-dark: #000000;

JSON

{
  "hex": "#40d188",
  "rgb": {
    "r": 64,
    "g": 209,
    "b": 136
  },
  "hsl": {
    "h": 149.793,
    "s": 61.181,
    "l": 53.529
  },
  "oklch": {
    "l": 0.76664,
    "c": 0.16153,
    "h": 156.7
  },
  "luminance": 0.48468
}

Semantic roles & 50–950 ramp

primary

#40D188

secondary

#D597B7

accent

#4494E4

background

#F8FDFA

surface

#F0FBF4

border

#CBD4CE

text

#0D1510

muted

#7D837F

Preview Lab

Preview with #40D188

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

Preview Lab → · Contrast checker → · Palette generator →