#40B240#40B240

#40B240 is a light, vivid green. Relative luminance 0.333; OKLCH L 67.5% C 0.185 H 143.2°. Best body text is #000000 at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#40B240
RGB	rgb(64, 178, 64)
HSL	hsl(120, 47%, 47%)
HSV	hsv(120, 64%, 70%)
CMYK	cmyk(64%, 0%, 64%, 30.2%)
CIE-LAB	lab(64.40, -54.42, 47.56)
CIE-LCH	lch(64.40, 72.27, 138.85°)
OKLab	oklab(67.5% -0.1478 0.1106)
OKLCH	oklch(67.5% 0.185 143.2)
XYZ	xyz(18.9591, 33.2991, 10.2777)
Luminance	0.3330 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B240 #B240B2

analogous

#79B240 #40B240 #40B279

triadic

#40B240 #4040B2 #B24040

tetradic

#40B240 #4079B2 #B240B2 #B27940

square

#40B240 #4079B2 #B240B2 #B27940

split-complementary

#40B240 #7940B2 #B24079

monochromatic

#205820 #308530 #40B240 #67C867 #94D894

Accessibility & contrast

On white

2.74

#40B240 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.66

#40B240 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B240

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B240	#FFFFFF	#000000	##000000
##40B240	1.00	2.74	7.66	7.66
#FFFFFF	2.74	1.00	21.00	21.00
#000000	7.66	21.00	1.00	1.00
##000000	7.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A232

Deuteranopia (green-blind)

#A8984A

Tritanopia (blue-blind)

#28AD9A

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #40b240;
/* rgb */ color: rgb(64, 178, 64);
/* oklch */ color: oklch(67.5% 0.185 143.2);

Tailwind

colors: {
  custom: {
    50: '#82ca79',
    500: '#40b240',
    950: '#000000',
  },
}

SCSS

$custom: #40b240;
$custom-light: #82ca79;
$custom-dark: #000000;

JSON

{
  "hex": "#40b240",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.67504,
    "c": 0.18461,
    "h": 143.2
  },
  "luminance": 0.33301
}

Semantic roles & 50–950 ramp

primary

#40B240

secondary

#C48AC4

accent

#51D7D7

background

#F8FCF7

surface

#F0F8EE

border

#CBD1C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B240

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

Preview Lab → · Contrast checker → · Palette generator →