#40AF31#40AF31

#40AF31 is a light, vivid green. Relative luminance 0.320; OKLCH L 66.6% C 0.191 H 141.4°. Best body text is #000000 at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#40AF31
RGB	rgb(64, 175, 49)
HSL	hsl(113, 56%, 44%)
HSV	hsv(113, 72%, 69%)
CMYK	cmyk(63.4%, 0%, 72%, 31.4%)
CIE-LAB	lab(63.32, -54.77, 52.55)
CIE-LCH	lch(63.32, 75.90, 136.19°)
OKLab	oklab(66.57% -0.1495 0.1193)
OKLCH	oklch(66.57% 0.191 141.4)
XYZ	xyz(17.9978, 31.9699, 8.1275)
Luminance	0.3197 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40AF31 #A031AF

analogous

#7FAF31 #40AF31 #31AF61

triadic

#40AF31 #3140AF #AF3140

tetradic

#40AF31 #317FAF #A031AF #AF6131

square

#40AF31 #317FAF #A031AF #AF6131

split-complementary

#40AF31 #6131AF #AF317F

monochromatic

#1D4F16 #2F7F24 #40AF31 #5ECE4F #8ADB7F

Accessibility & contrast

On white

2.84

#40AF31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.39

#40AF31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40AF31

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40AF31	#FFFFFF	#000000	##000000
##40AF31	1.00	2.84	7.39	7.39
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.39	21.00	1.00	1.00
##000000	7.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B39F1C

Deuteranopia (green-blind)

#A6963E

Tritanopia (blue-blind)

#2DAA96

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #40af31;
/* rgb */ color: rgb(64, 175, 49);
/* oklch */ color: oklch(66.6% 0.191 141.4);

Tailwind

colors: {
  custom: {
    50: '#83c871',
    500: '#40af31',
    950: '#000000',
  },
}

SCSS

$custom: #40af31;
$custom-light: #83c871;
$custom-dark: #000000;

JSON

{
  "hex": "#40af31",
  "rgb": {
    "r": 64,
    "g": 175,
    "b": 49
  },
  "hsl": {
    "h": 112.857,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.66568,
    "c": 0.19132,
    "h": 141.4
  },
  "luminance": 0.31972
}

Semantic roles & 50–950 ramp

primary

#40AF31

secondary

#BB78C4

accent

#48E0CE

background

#F8FCF7

surface

#F0F8ED

border

#CBD1C8

text

#0C1308

muted

#7D827B

Preview Lab

Preview with #40AF31

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

Preview Lab → · Contrast checker → · Palette generator →