#40D37E#40D37E

#40D37E is a light, vivid green. Relative luminance 0.492; OKLCH L 77.0% C 0.173 H 153.4°. Best body text is #000000 at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#40D37E
RGB	rgb(64, 211, 126)
HSL	hsl(145, 63%, 54%)
HSV	hsv(145, 70%, 83%)
CMYK	cmyk(69.7%, 0%, 40.3%, 17.3%)
CIE-LAB	lab(75.56, -57.40, 31.16)
CIE-LCH	lch(75.56, 65.31, 151.51°)
OKLab	oklab(76.98% -0.1548 0.0774)
OKLCH	oklch(76.98% 0.173 153.4)
XYZ	xyz(29.1719, 49.1816, 27.6902)
Luminance	0.4919 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D37E #D34095

analogous

#4CD340 #40D37E #40D3C8

triadic

#40D37E #7E40D3 #D37E40

tetradic

#40D37E #404CD3 #D34095 #D3C840

square

#40D37E #404CD3 #D34095 #D3C840

split-complementary

#40D37E #C840D3 #D3404C

monochromatic

#1D7C45 #28AE60 #40D37E #72DEA0 #A3EAC1

Accessibility & contrast

On white

1.94

#40D37E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.84

#40D37E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D37E

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D37E	#FFFFFF	#000000	##000000
##40D37E	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)

#D3C278

Deuteranopia (green-blind)

#C1B584

Tritanopia (blue-blind)

#00D0BE

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #40d37e;
/* rgb */ color: rgb(64, 211, 126);
/* oklch */ color: oklch(77.0% 0.173 153.4);

Tailwind

colors: {
  custom: {
    50: '#87e2a4',
    500: '#40d37e',
    950: '#000000',
  },
}

SCSS

$custom: #40d37e;
$custom-light: #87e2a4;
$custom-dark: #000000;

JSON

{
  "hex": "#40d37e",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 126
  },
  "hsl": {
    "h": 145.306,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.76976,
    "c": 0.17313,
    "h": 153.4
  },
  "luminance": 0.49185
}

Semantic roles & 50–950 ramp

primary

#40D37E

secondary

#D798BC

accent

#42A1E6

background

#F9FDFA

surface

#F1FBF4

border

#CBD4CE

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #40D37E

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

Preview Lab → · Contrast checker → · Palette generator →