#40D37B#40D37B

#40D37B is a light, vivid green. Relative luminance 0.491; OKLCH L 76.9% C 0.176 H 152.6°. Best body text is #000000 at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#40D37B
RGB	rgb(64, 211, 123)
HSL	hsl(144, 63%, 54%)
HSV	hsv(144, 70%, 83%)
CMYK	cmyk(69.7%, 0%, 41.7%, 17.3%)
CIE-LAB	lab(75.52, -57.93, 32.63)
CIE-LCH	lch(75.52, 66.49, 150.61°)
OKLab	oklab(76.92% -0.1562 0.0808)
OKLCH	oklch(76.92% 0.176 152.6)
XYZ	xyz(28.9813, 49.1053, 26.6860)
Luminance	0.4911 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40D37B #D34098

analogous

#4FD340 #40D37B #40D3C5

triadic

#40D37B #7B40D3 #D37B40

tetradic

#40D37B #404FD3 #D34098 #D3C540

square

#40D37B #404FD3 #D34098 #D3C540

split-complementary

#40D37B #C540D3 #D3404F

monochromatic

#1D7C43 #28AE5E #40D37B #72DE9D #A3EAC0

Accessibility & contrast

On white

1.94

#40D37B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.82

#40D37B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40D37B

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40D37B	#FFFFFF	#000000	##000000
##40D37B	1.00	1.94	10.82	10.82
#FFFFFF	1.94	1.00	21.00	21.00
#000000	10.82	21.00	1.00	1.00
##000000	10.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D3C275

Deuteranopia (green-blind)

#C1B581

Tritanopia (blue-blind)

#00D0BD

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #40d37b;
/* rgb */ color: rgb(64, 211, 123);
/* oklch */ color: oklch(76.9% 0.176 152.6);

Tailwind

colors: {
  custom: {
    50: '#87e2a2',
    500: '#40d37b',
    950: '#000000',
  },
}

SCSS

$custom: #40d37b;
$custom-light: #87e2a2;
$custom-dark: #000000;

JSON

{
  "hex": "#40d37b",
  "rgb": {
    "r": 64,
    "g": 211,
    "b": 123
  },
  "hsl": {
    "h": 144.082,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.76922,
    "c": 0.17584,
    "h": 152.6
  },
  "luminance": 0.49109
}

Semantic roles & 50–950 ramp

primary

#40D37B

secondary

#D798BE

accent

#42A4E6

background

#F9FDFA

surface

#F1FBF3

border

#CBD4CD

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #40D37B

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

Preview Lab → · Contrast checker → · Palette generator →