#40B256#40B256

#40B256 is a light, vivid green. Relative luminance 0.336; OKLCH L 67.8% C 0.166 H 147.0°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#40B256
RGB	rgb(64, 178, 86)
HSL	hsl(132, 47%, 47%)
HSV	hsv(132, 64%, 70%)
CMYK	cmyk(64%, 0%, 51.7%, 30.2%)
CIE-LAB	lab(64.64, -51.64, 37.50)
CIE-LCH	lch(64.64, 63.82, 144.01°)
OKLab	oklab(67.78% -0.1395 0.0905)
OKLCH	oklch(67.78% 0.166 147)
XYZ	xyz(19.7131, 33.6007, 14.2490)
Luminance	0.3360 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B256 #B2409C

analogous

#63B240 #40B256 #40B28F

triadic

#40B256 #5640B2 #B25640

tetradic

#40B256 #4063B2 #B2409C #B28F40

square

#40B256 #4063B2 #B2409C #B28F40

split-complementary

#40B256 #8F40B2 #B24063

monochromatic

#20582B #308540 #40B256 #67C87A #94D8A1

Accessibility & contrast

On white

2.72

#40B256 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.72

#40B256 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B256

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B256	#FFFFFF	#000000	##000000
##40B256	1.00	2.72	7.72	7.72
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.72	21.00	1.00	1.00
##000000	7.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A34E

Deuteranopia (green-blind)

#A6995D

Tritanopia (blue-blind)

#1FAE9D

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40b256;
/* rgb */ color: rgb(64, 178, 86);
/* oklch */ color: oklch(67.8% 0.166 147.0);

Tailwind

colors: {
  custom: {
    50: '#82ca87',
    500: '#40b256',
    950: '#000000',
  },
}

SCSS

$custom: #40b256;
$custom-light: #82ca87;
$custom-dark: #000000;

JSON

{
  "hex": "#40b256",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 86
  },
  "hsl": {
    "h": 131.579,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.67782,
    "c": 0.16624,
    "h": 147
  },
  "luminance": 0.33603
}

Semantic roles & 50–950 ramp

primary

#40B256

secondary

#C48AB9

accent

#51BDD7

background

#F8FCF8

surface

#F0F8F0

border

#CBD1CB

text

#0B130B

muted

#7C827C

Preview Lab

Preview with #40B256

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

Preview Lab → · Contrast checker → · Palette generator →