#40B439#40B439

#40B439 is a light, vivid green. Relative luminance 0.340; OKLCH L 68.0% C 0.192 H 142.3°. Best body text is #000000 at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#40B439
RGB	rgb(64, 180, 57)
HSL	hsl(117, 52%, 46%)
HSV	hsv(117, 68%, 71%)
CMYK	cmyk(64.4%, 0%, 68.3%, 29.4%)
CIE-LAB	lab(64.98, -55.83, 51.15)
CIE-LCH	lch(64.98, 75.71, 137.50°)
OKLab	oklab(67.97% -0.152 0.1174)
OKLCH	oklch(67.97% 0.192 142.3)
XYZ	xyz(19.1731, 34.0260, 9.4274)
Luminance	0.3403 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B439 #AD39B4

analogous

#7EB439 #40B439 #39B470

triadic

#40B439 #3940B4 #B43940

tetradic

#40B439 #397EB4 #AD39B4 #B47039

square

#40B439 #397EB4 #AD39B4 #B47039

split-complementary

#40B439 #7039B4 #B4397E

monochromatic

#1F571C #2F862A #40B439 #64CC5E #91DB8D

Accessibility & contrast

On white

2.69

#40B439 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.81

#40B439 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B439

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B439	#FFFFFF	#000000	##000000
##40B439	1.00	2.69	7.81	7.81
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.81	21.00	1.00	1.00
##000000	7.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A428

Deuteranopia (green-blind)

#AA9A44

Tritanopia (blue-blind)

#29AF9B

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b439;
/* rgb */ color: rgb(64, 180, 57);
/* oklch */ color: oklch(68.0% 0.192 142.3);

Tailwind

colors: {
  custom: {
    50: '#83cb76',
    500: '#40b439',
    950: '#000000',
  },
}

SCSS

$custom: #40b439;
$custom-light: #83cb76;
$custom-dark: #000000;

JSON

{
  "hex": "#40b439",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 57
  },
  "hsl": {
    "h": 116.585,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.67965,
    "c": 0.19205,
    "h": 142.3
  },
  "luminance": 0.34028
}

Semantic roles & 50–950 ramp

primary

#40B439

secondary

#C283C5

accent

#4CDBD3

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1309

muted

#7D827B

Preview Lab

Preview with #40B439

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

Preview Lab → · Contrast checker → · Palette generator →