#40B040#40B040

#40B040 is a light, vivid green. Relative luminance 0.325; OKLCH L 67.0% C 0.182 H 143.2°. Best body text is #000000 at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#40B040
RGB	rgb(64, 176, 64)
HSL	hsl(120, 47%, 47%)
HSV	hsv(120, 64%, 69%)
CMYK	cmyk(63.6%, 0%, 63.6%, 31%)
CIE-LAB	lab(63.76, -53.70, 46.85)
CIE-LCH	lch(63.76, 71.26, 138.90°)
OKLab	oklab(66.97% -0.1458 0.1091)
OKLCH	oklch(66.97% 0.182 143.2)
XYZ	xyz(18.5640, 32.5090, 10.1460)
Luminance	0.3251 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B040 #B040B0

analogous

#78B040 #40B040 #40B078

triadic

#40B040 #4040B0 #B04040

tetradic

#40B040 #4078B0 #B040B0 #B07840

square

#40B040 #4078B0 #B040B0 #B07840

split-complementary

#40B040 #7840B0 #B04078

monochromatic

#1F561F #308330 #40B040 #66C766 #93D893

Accessibility & contrast

On white

2.80

#40B040 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.50

#40B040 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B040

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B040	#FFFFFF	#000000	##000000
##40B040	1.00	2.80	7.50	7.50
#FFFFFF	2.80	1.00	21.00	21.00
#000000	7.50	21.00	1.00	1.00
##000000	7.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A033

Deuteranopia (green-blind)

#A6974A

Tritanopia (blue-blind)

#29AB98

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40b040;
/* rgb */ color: rgb(64, 176, 64);
/* oklch */ color: oklch(67.0% 0.182 143.2);

Tailwind

colors: {
  custom: {
    50: '#82c979',
    500: '#40b040',
    950: '#000000',
  },
}

SCSS

$custom: #40b040;
$custom-light: #82c979;
$custom-dark: #000000;

JSON

{
  "hex": "#40b040",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 46.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.66974,
    "c": 0.18213,
    "h": 143.2
  },
  "luminance": 0.32511
}

Semantic roles & 50–950 ramp

primary

#40B040

secondary

#C389C3

accent

#51D6D6

background

#F8FCF7

surface

#F0F8EE

border

#CBD1C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B040

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

Preview Lab → · Contrast checker → · Palette generator →