#40D388#40D388

#40D388 is a light, vivid green. Relative luminance 0.495; OKLCH L 77.2% C 0.164 H 156.3°. Best body text is #000000 at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#40D388
RGB	rgb(64, 211, 136)
HSL	hsl(149, 63%, 54%)
HSV	hsv(149, 70%, 83%)
CMYK	cmyk(69.7%, 0%, 35.5%, 17.3%)
CIE-LAB	lab(75.73, -55.53, 26.22)
CIE-LCH	lch(75.73, 61.41, 154.73°)
OKLab	oklab(77.17% -0.1503 0.0659)
OKLCH	oklch(77.17% 0.164 156.3)
XYZ	xyz(29.8497, 49.4527, 31.2600)
Luminance	0.4946 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D388 #D3408B

analogous

#42D340 #40D388 #40D3D2

triadic

#40D388 #8840D3 #D38840

tetradic

#40D388 #4042D3 #D3408B #D3D240

square

#40D388 #4042D3 #D3408B #D3D240

split-complementary

#40D388 #D240D3 #D34042

monochromatic

#1D7C4B #28AE6A #40D388 #72DEA7 #A3EAC6

Accessibility & contrast

On white

1.93

#40D388 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.89

#40D388 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D388

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D388	#FFFFFF	#000000	##000000
##40D388	1.00	1.93	10.89	10.89
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.89	21.00	1.00	1.00
##000000	10.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2C283

Deuteranopia (green-blind)

#BFB58D

Tritanopia (blue-blind)

#00D1C0

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #40d388;
/* rgb */ color: rgb(64, 211, 136);
/* oklch */ color: oklch(77.2% 0.164 156.3);

Tailwind

colors: {
  custom: {
    50: '#87e1ab',
    500: '#40d388',
    950: '#000000',
  },
}

SCSS

$custom: #40d388;
$custom-light: #87e1ab;
$custom-dark: #000000;

JSON

{
  "hex": "#40d388",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 136
  },
  "hsl": {
    "h": 149.388,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.7717,
    "c": 0.16413,
    "h": 156.3
  },
  "luminance": 0.49456
}

Semantic roles & 50–950 ramp

primary

#40D388

secondary

#D798B8

accent

#4296E6

background

#F9FDFA

surface

#F1FBF4

border

#CBD4CE

text

#0D1510

muted

#7E837F

Preview Lab

Preview with #40D388

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

Preview Lab → · Contrast checker → · Palette generator →