#40E58F#40E58F

#40E58F is a light, vivid green. Relative luminance 0.591; OKLCH L 81.8% C 0.181 H 155.4°. Best body text is #000000 at 12.82:1 contrast (WCAG AA passes).

Color values

HEX	#40E58F
RGB	rgb(64, 229, 143)
HSL	hsl(149, 76%, 57%)
HSV	hsv(149, 72%, 90%)
CMYK	cmyk(72.1%, 0%, 37.6%, 10.2%)
CIE-LAB	lab(81.35, -60.93, 30.14)
CIE-LCH	lch(81.35, 67.98, 153.68°)
OKLab	oklab(81.84% -0.1646 0.0754)
OKLCH	oklch(81.84% 0.181 155.4)
XYZ	xyz(35.0883, 59.1077, 35.5410)
Luminance	0.5911 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E58F #E54096

analogous

#44E540 #40E58F #40E5E1

triadic

#40E58F #8F40E5 #E58F40

tetradic

#40E58F #4044E5 #E54096 #E5E140

square

#40E58F #4044E5 #E54096 #E5E140

split-complementary

#40E58F #E140E5 #E54044

monochromatic

#149653 #1CCC70 #40E58F #76ECAF #ACF4CE

Accessibility & contrast

On white

1.64

#40E58F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.82

#40E58F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E58F

12.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E58F	#FFFFFF	#000000	##000000
##40E58F	1.00	1.64	12.82	12.82
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.82	21.00	1.00	1.00
##000000	12.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E4D389

Deuteranopia (green-blind)

#D0C495

Tritanopia (blue-blind)

#00E3CF

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #40e58f;
/* rgb */ color: rgb(64, 229, 143);
/* oklch */ color: oklch(81.8% 0.181 155.4);

Tailwind

colors: {
  custom: {
    50: '#8aeeb0',
    500: '#40e58f',
    950: '#000000',
  },
}

SCSS

$custom: #40e58f;
$custom-light: #8aeeb0;
$custom-dark: #000000;

JSON

{
  "hex": "#40e58f",
  "rgb": {
    "r": 64,
    "g": 229,
    "b": 143
  },
  "hsl": {
    "h": 148.727,
    "s": 76.037,
    "l": 57.451
  },
  "oklch": {
    "l": 0.81837,
    "c": 0.181,
    "h": 155.4
  },
  "luminance": 0.59112
}

Semantic roles & 50–950 ramp

primary

#40E58F

secondary

#9A2F67

accent

#3598F3

background

#FCFFFD

surface

#F4FEF7

border

#CED6D0

text

#0D1610

muted

#7F8581

Preview Lab

Preview with #40E58F

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

Preview Lab → · Contrast checker → · Palette generator →