#40E28B#40E28B

#40E28B is a light, vivid green. Relative luminance 0.573; OKLCH L 81.0% C 0.181 H 154.8°. Best body text is #000000 at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#40E28B
RGB	rgb(64, 226, 139)
HSL	hsl(148, 74%, 57%)
HSV	hsv(148, 72%, 89%)
CMYK	cmyk(71.7%, 0%, 38.5%, 11.4%)
CIE-LAB	lab(80.37, -60.57, 30.87)
CIE-LCH	lch(80.37, 67.99, 152.99°)
OKLab	oklab(81.01% -0.1635 0.077)
OKLCH	oklch(81.01% 0.181 154.8)
XYZ	xyz(33.9678, 57.3429, 33.6992)
Luminance	0.5735 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40E28B #E24097

analogous

#46E240 #40E28B #40E2DC

triadic

#40E28B #8B40E2 #E28B40

tetradic

#40E28B #4046E2 #E24097 #E2DC40

square

#40E28B #4046E2 #E24097 #E2DC40

split-complementary

#40E28B #DC40E2 #E24046

monochromatic

#16924F #1EC76C #40E28B #75EAAB #AAF2CC

Accessibility & contrast

On white

1.68

#40E28B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.47

#40E28B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40E28B

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40E28B	#FFFFFF	#000000	##000000
##40E28B	1.00	1.68	12.47	12.47
#FFFFFF	1.68	1.00	21.00	21.00
#000000	12.47	21.00	1.00	1.00
##000000	12.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1D085

Deuteranopia (green-blind)

#CEC291

Tritanopia (blue-blind)

#00E0CC

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #40e28b;
/* rgb */ color: rgb(64, 226, 139);
/* oklch */ color: oklch(81.0% 0.181 154.8);

Tailwind

colors: {
  custom: {
    50: '#8aecad',
    500: '#40e28b',
    950: '#000000',
  },
}

SCSS

$custom: #40e28b;
$custom-light: #8aecad;
$custom-dark: #000000;

JSON

{
  "hex": "#40e28b",
  "rgb": {
    "r": 64,
    "g": 226,
    "b": 139
  },
  "hsl": {
    "h": 147.778,
    "s": 73.636,
    "l": 56.863
  },
  "oklch": {
    "l": 0.81009,
    "c": 0.18073,
    "h": 154.8
  },
  "luminance": 0.57347
}

Semantic roles & 50–950 ramp

primary

#40E28B

secondary

#963067

accent

#389BF0

background

#FCFFFD

surface

#F4FEF7

border

#CED6D0

text

#0D1610

muted

#7F8581

Preview Lab

Preview with #40E28B

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

Preview Lab → · Contrast checker → · Palette generator →