#40C637#40C637

#40C637 is a light, highly saturated green. Relative luminance 0.418; OKLCH L 72.7% C 0.214 H 142.2°. Best body text is #000000 at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#40C637
RGB	rgb(64, 198, 55)
HSL	hsl(116, 57%, 50%)
HSV	hsv(116, 72%, 78%)
CMYK	cmyk(67.7%, 0%, 72.2%, 22.4%)
CIE-LAB	lab(70.70, -62.14, 57.88)
CIE-LCH	lch(70.70, 84.92, 137.03°)
OKLab	oklab(72.69% -0.1692 0.1313)
OKLCH	oklch(72.69% 0.214 142.2)
XYZ	xyz(22.9967, 41.7516, 10.4606)
Luminance	0.4175 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C637 #BD37C6

analogous

#87C637 #40C637 #37C676

triadic

#40C637 #3740C6 #C63740

tetradic

#40C637 #3787C6 #BD37C6 #C67637

square

#40C637 #3787C6 #BD37C6 #C67637

split-complementary

#40C637 #7637C6 #C63787

monochromatic

#21661C #31962A #40C637 #6DD466 #9AE296

Accessibility & contrast

On white

2.25

#40C637 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.35

#40C637 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C637

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C637	#FFFFFF	#000000	##000000
##40C637	1.00	2.25	9.35	9.35
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.35	21.00	1.00	1.00
##000000	9.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CBB41E

Deuteranopia (green-blind)

#BBA946

Tritanopia (blue-blind)

#20C0AA

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #40c637;
/* rgb */ color: rgb(64, 198, 55);
/* oklch */ color: oklch(72.7% 0.214 142.2);

Tailwind

colors: {
  custom: {
    50: '#87d876',
    500: '#40c637',
    950: '#000000',
  },
}

SCSS

$custom: #40c637;
$custom-light: #87d876;
$custom-dark: #000000;

JSON

{
  "hex": "#40c637",
  "rgb": {
    "r": 64,
    "g": 198,
    "b": 55
  },
  "hsl": {
    "h": 116.224,
    "s": 56.522,
    "l": 49.608
  },
  "oklch": {
    "l": 0.72694,
    "c": 0.21413,
    "h": 142.2
  },
  "luminance": 0.41754
}

Semantic roles & 50–950 ramp

primary

#40C637

secondary

#C98CCD

accent

#48E0D6

background

#F9FDF7

surface

#F1FBED

border

#CBD4C8

text

#0D1509

muted

#7E837B

Preview Lab

Preview with #40C637

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

Preview Lab → · Contrast checker → · Palette generator →