#40D379#40D379

#40D379 is a light, vivid green. Relative luminance 0.491; OKLCH L 76.9% C 0.178 H 152.1°. Best body text is #000000 at 10.81:1 contrast (WCAG AA passes).

Color values

HEX	#40D379
RGB	rgb(64, 211, 121)
HSL	hsl(143, 63%, 54%)
HSV	hsv(143, 70%, 83%)
CMYK	cmyk(69.7%, 0%, 42.7%, 17.3%)
CIE-LAB	lab(75.49, -58.28, 33.60)
CIE-LCH	lch(75.49, 67.27, 150.03°)
OKLab	oklab(76.89% -0.1571 0.083)
OKLCH	oklch(76.89% 0.178 152.1)
XYZ	xyz(28.8573, 49.0558, 26.0333)
Luminance	0.4906 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D379 #D3409A

analogous

#51D340 #40D379 #40D3C2

triadic

#40D379 #7940D3 #D37940

tetradic

#40D379 #4051D3 #D3409A #D3C240

square

#40D379 #4051D3 #D3409A #D3C240

split-complementary

#40D379 #C240D3 #D34051

monochromatic

#1D7C42 #28AE5C #40D379 #72DE9C #A3EABF

Accessibility & contrast

On white

1.94

#40D379 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.81

#40D379 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D379

10.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D379	#FFFFFF	#000000	##000000
##40D379	1.00	1.94	10.81	10.81
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.81	21.00	1.00	1.00
##000000	10.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3C272

Deuteranopia (green-blind)

#C1B57F

Tritanopia (blue-blind)

#00D0BD

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #40d379;
/* rgb */ color: rgb(64, 211, 121);
/* oklch */ color: oklch(76.9% 0.178 152.1);

Tailwind

colors: {
  custom: {
    50: '#87e2a1',
    500: '#40d379',
    950: '#000000',
  },
}

SCSS

$custom: #40d379;
$custom-light: #87e2a1;
$custom-dark: #000000;

JSON

{
  "hex": "#40d379",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 121
  },
  "hsl": {
    "h": 143.265,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.76886,
    "c": 0.17766,
    "h": 152.1
  },
  "luminance": 0.49059
}

Semantic roles & 50–950 ramp

primary

#40D379

secondary

#D798BE

accent

#42A6E6

background

#F9FDF9

surface

#F1FBF2

border

#CBD4CC

text

#0D150F

muted

#7E837E

Preview Lab

Preview with #40D379

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

Preview Lab → · Contrast checker → · Palette generator →