#40E490#40E490

#40E490 is a light, vivid green. Relative luminance 0.586; OKLCH L 81.6% C 0.179 H 155.8°. Best body text is #000000 at 12.72:1 contrast (WCAG AA passes).

Color values

HEX	#40E490
RGB	rgb(64, 228, 144)
HSL	hsl(149, 75%, 57%)
HSV	hsv(149, 72%, 89%)
CMYK	cmyk(71.9%, 0%, 36.8%, 10.6%)
CIE-LAB	lab(81.06, -60.38, 29.25)
CIE-LCH	lch(81.06, 67.09, 154.15°)
OKLab	oklab(81.61% -0.1632 0.0733)
OKLCH	oklch(81.61% 0.179 155.8)
XYZ	xyz(34.8885, 58.5864, 35.8497)
Luminance	0.5859 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E490 #E44094

analogous

#42E440 #40E490 #40E4E2

triadic

#40E490 #9040E4 #E49040

tetradic

#40E490 #4042E4 #E44094 #E4E240

square

#40E490 #4042E4 #E44094 #E4E240

split-complementary

#40E490 #E240E4 #E44042

monochromatic

#159553 #1DCA71 #40E490 #76ECAF #ABF3CE

Accessibility & contrast

On white

1.65

#40E490 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.72

#40E490 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E490

12.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E490	#FFFFFF	#000000	##000000
##40E490	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)

#E3D28A

Deuteranopia (green-blind)

#CFC496

Tritanopia (blue-blind)

#00E2CF

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #40e490;
/* rgb */ color: rgb(64, 228, 144);
/* oklch */ color: oklch(81.6% 0.179 155.8);

Tailwind

colors: {
  custom: {
    50: '#8aeeb1',
    500: '#40e490',
    950: '#000000',
  },
}

SCSS

$custom: #40e490;
$custom-light: #8aeeb1;
$custom-dark: #000000;

JSON

{
  "hex": "#40e490",
  "rgb": {
    "r": 64,
    "g": 228,
    "b": 144
  },
  "hsl": {
    "h": 149.268,
    "s": 75.229,
    "l": 57.255
  },
  "oklch": {
    "l": 0.81606,
    "c": 0.17885,
    "h": 155.8
  },
  "luminance": 0.5859
}

Semantic roles & 50–950 ramp

primary

#40E490

secondary

#992F65

accent

#3696F2

background

#FCFFFD

surface

#F4FEF7

border

#CED6D0

text

#0D1610

muted

#7F8581

Preview Lab

Preview with #40E490

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

Preview Lab → · Contrast checker → · Palette generator →