#40B440#40B440

#40B440 is a light, vivid green. Relative luminance 0.341; OKLCH L 68.0% C 0.187 H 143.2°. Best body text is #000000 at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#40B440
RGB	rgb(64, 180, 64)
HSL	hsl(120, 48%, 48%)
HSV	hsv(120, 64%, 71%)
CMYK	cmyk(64.4%, 0%, 64.4%, 29.4%)
CIE-LAB	lab(65.04, -55.13, 48.27)
CIE-LCH	lch(65.04, 73.28, 138.80°)
OKLab	oklab(68.03% -0.1497 0.1121)
OKLCH	oklch(68.03% 0.187 143.2)
XYZ	xyz(19.3599, 34.1007, 10.4113)
Luminance	0.3410 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B440 #B440B4

analogous

#7AB440 #40B440 #40B47A

triadic

#40B440 #4040B4 #B44040

tetradic

#40B440 #407AB4 #B440B4 #B47A40

square

#40B440 #407AB4 #B440B4 #B47A40

split-complementary

#40B440 #7A40B4 #B4407A

monochromatic

#205A20 #308730 #40B440 #68C968 #95D995

Accessibility & contrast

On white

2.69

#40B440 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.82

#40B440 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B440

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B440	#FFFFFF	#000000	##000000
##40B440	1.00	2.69	7.82	7.82
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.82	21.00	1.00	1.00
##000000	7.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A432

Deuteranopia (green-blind)

#AA9A4A

Tritanopia (blue-blind)

#27AF9C

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b440;
/* rgb */ color: rgb(64, 180, 64);
/* oklch */ color: oklch(68.0% 0.187 143.2);

Tailwind

colors: {
  custom: {
    50: '#83cb7a',
    500: '#40b440',
    950: '#000000',
  },
}

SCSS

$custom: #40b440;
$custom-light: #83cb7a;
$custom-dark: #000000;

JSON

{
  "hex": "#40b440",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 64
  },
  "hsl": {
    "h": 120,
    "s": 47.541,
    "l": 47.843
  },
  "oklch": {
    "l": 0.68033,
    "c": 0.18706,
    "h": 143.2
  },
  "luminance": 0.34103
}

Semantic roles & 50–950 ramp

primary

#40B440

secondary

#C58BC5

accent

#51D7D7

background

#F8FCF7

surface

#F0F9EE

border

#CBD2C9

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B440

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

Preview Lab → · Contrast checker → · Palette generator →