#40E588#40E588

#40E588 is a light, vivid green. Relative luminance 0.589; OKLCH L 81.7% C 0.187 H 153.6°. Best body text is #000000 at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#40E588
RGB	rgb(64, 229, 136)
HSL	hsl(146, 76%, 57%)
HSV	hsv(146, 72%, 90%)
CMYK	cmyk(72.1%, 0%, 40.6%, 10.2%)
CIE-LAB	lab(81.24, -62.20, 33.53)
CIE-LCH	lch(81.24, 70.67, 151.67°)
OKLab	oklab(81.71% -0.1676 0.0833)
OKLCH	oklch(81.71% 0.187 153.6)
XYZ	xyz(34.5745, 58.9022, 32.8349)
Luminance	0.5891 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E588 #E5409D

analogous

#4AE540 #40E588 #40E5DB

triadic

#40E588 #8840E5 #E58840

tetradic

#40E588 #404AE5 #E5409D #E5DB40

square

#40E588 #404AE5 #E5409D #E5DB40

split-complementary

#40E588 #DB40E5 #E5404A

monochromatic

#14964D #1CCC69 #40E588 #76ECAA #ACF4CB

Accessibility & contrast

On white

1.64

#40E588 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.78

#40E588 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E588

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E588	#FFFFFF	#000000	##000000
##40E588	1.00	1.64	12.78	12.78
#FFFFFF	1.64	1.00	21.00	21.00
#000000	12.78	21.00	1.00	1.00
##000000	12.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E5D281

Deuteranopia (green-blind)

#D1C48E

Tritanopia (blue-blind)

#00E2CE

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #40e588;
/* rgb */ color: rgb(64, 229, 136);
/* oklch */ color: oklch(81.7% 0.187 153.6);

Tailwind

colors: {
  custom: {
    50: '#8aeeab',
    500: '#40e588',
    950: '#000000',
  },
}

SCSS

$custom: #40e588;
$custom-light: #8aeeab;
$custom-dark: #000000;

JSON

{
  "hex": "#40e588",
  "rgb": {
    "r": 64,
    "g": 229,
    "b": 136
  },
  "hsl": {
    "h": 146.182,
    "s": 76.037,
    "l": 57.451
  },
  "oklch": {
    "l": 0.81707,
    "c": 0.18719,
    "h": 153.6
  },
  "luminance": 0.58906
}

Semantic roles & 50–950 ramp

primary

#40E588

secondary

#9A2F6B

accent

#35A0F3

background

#FCFFFD

surface

#F4FEF7

border

#CED6D0

text

#0D1710

muted

#7F8581

Preview Lab

Preview with #40E588

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

Preview Lab → · Contrast checker → · Palette generator →