#40E491#40E491

#40E491 is a light, vivid green. Relative luminance 0.586; OKLCH L 81.6% C 0.178 H 156.1°. Best body text is #000000 at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#40E491
RGB	rgb(64, 228, 145)
HSL	hsl(150, 75%, 57%)
HSV	hsv(150, 72%, 89%)
CMYK	cmyk(71.9%, 0%, 36.4%, 10.6%)
CIE-LAB	lab(81.08, -60.19, 28.76)
CIE-LCH	lch(81.08, 66.71, 154.46°)
OKLab	oklab(81.63% -0.1627 0.0721)
OKLCH	oklch(81.63% 0.178 156.1)
XYZ	xyz(34.9653, 58.6171, 36.2540)
Luminance	0.5862 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E491 #E44093

analogous

#41E440 #40E491 #40E4E3

triadic

#40E491 #9140E4 #E49140

tetradic

#40E491 #4041E4 #E44093 #E4E340

square

#40E491 #4041E4 #E44093 #E4E340

split-complementary

#40E491 #E340E4 #E44041

monochromatic

#159554 #1DCA72 #40E491 #76ECB0 #ABF3CF

Accessibility & contrast

On white

1.65

#40E491 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.72

#40E491 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E491

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E491	#FFFFFF	#000000	##000000
##40E491	1.00	1.65	12.72	12.72
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.72	21.00	1.00	1.00
##000000	12.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E3D28C

Deuteranopia (green-blind)

#CFC496

Tritanopia (blue-blind)

#00E2CF

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #40e491;
/* rgb */ color: rgb(64, 228, 145);
/* oklch */ color: oklch(81.6% 0.178 156.1);

Tailwind

colors: {
  custom: {
    50: '#8aeeb2',
    500: '#40e491',
    950: '#000000',
  },
}

SCSS

$custom: #40e491;
$custom-light: #8aeeb2;
$custom-dark: #000000;

JSON

{
  "hex": "#40e491",
  "rgb": {
    "r": 64,
    "g": 228,
    "b": 145
  },
  "hsl": {
    "h": 149.634,
    "s": 75.229,
    "l": 57.255
  },
  "oklch": {
    "l": 0.81626,
    "c": 0.17797,
    "h": 156.1
  },
  "luminance": 0.58621
}

Semantic roles & 50–950 ramp

primary

#40E491

secondary

#992F65

accent

#3695F2

background

#FCFFFD

surface

#F4FEF7

border

#CED6D0

text

#0D1611

muted

#7F8581

Preview Lab

Preview with #40E491

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

Preview Lab → · Contrast checker → · Palette generator →