#40B531#40B531

#40B531 is a light, vivid green. Relative luminance 0.344; OKLCH L 68.2% C 0.198 H 141.5°. Best body text is #000000 at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#40B531
RGB	rgb(64, 181, 49)
HSL	hsl(113, 57%, 45%)
HSV	hsv(113, 73%, 71%)
CMYK	cmyk(64.6%, 0%, 72.9%, 29%)
CIE-LAB	lab(65.25, -56.86, 54.52)
CIE-LCH	lch(65.25, 78.77, 136.21°)
OKLab	oklab(68.16% -0.1552 0.1235)
OKLCH	oklch(68.16% 0.198 141.5)
XYZ	xyz(19.1916, 34.3576, 8.5254)
Luminance	0.3436 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B531 #A631B5

analogous

#82B531 #40B531 #31B564

triadic

#40B531 #3140B5 #B53140

tetradic

#40B531 #3182B5 #A631B5 #B56431

square

#40B531 #3182B5 #A631B5 #B56431

split-complementary

#40B531 #6431B5 #B53182

monochromatic

#1E5517 #2F8524 #40B531 #61D053 #8DDD83

Accessibility & contrast

On white

2.67

#40B531 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.87

#40B531 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B531

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B531	#FFFFFF	#000000	##000000
##40B531	1.00	2.67	7.87	7.87
#FFFFFF	2.67	1.00	21.00	21.00
#000000	7.87	21.00	1.00	1.00
##000000	7.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B9A419

Deuteranopia (green-blind)

#AB9B3F

Tritanopia (blue-blind)

#2AAF9B

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b531;
/* rgb */ color: rgb(64, 181, 49);
/* oklch */ color: oklch(68.2% 0.198 141.5);

Tailwind

colors: {
  custom: {
    50: '#84cc71',
    500: '#40b531',
    950: '#000000',
  },
}

SCSS

$custom: #40b531;
$custom-light: #84cc71;
$custom-dark: #000000;

JSON

{
  "hex": "#40b531",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 49
  },
  "hsl": {
    "h": 113.182,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.68163,
    "c": 0.19832,
    "h": 141.5
  },
  "luminance": 0.34359
}

Semantic roles & 50–950 ramp

primary

#40B531

secondary

#BE7BC7

accent

#47E1CF

background

#F8FCF7

surface

#F0F9ED

border

#CBD2C8

text

#0C1308

muted

#7D827B

Preview Lab

Preview with #40B531

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

Preview Lab → · Contrast checker → · Palette generator →