#40B31F#40B31F

#40B31F is a light, highly saturated green. Relative luminance 0.334; OKLCH L 67.5% C 0.205 H 140.1°. Best body text is #000000 at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#40B31F
RGB	rgb(64, 179, 31)
HSL	hsl(107, 70%, 41%)
HSV	hsv(107, 83%, 70%)
CMYK	cmyk(64.2%, 0%, 82.7%, 29.8%)
CIE-LAB	lab(64.51, -57.34, 59.55)
CIE-LCH	lch(64.51, 82.67, 133.92°)
OKLab	oklab(67.52% -0.1574 0.1315)
OKLCH	oklch(67.52% 0.205 140.1)
XYZ	xyz(18.4809, 33.4273, 6.7742)
Luminance	0.3343 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B31F #921FB3

analogous

#8AB31F #40B31F #1FB348

triadic

#40B31F #1F40B3 #B31F40

tetradic

#40B31F #1F8AB3 #921FB3 #B3481F

square

#40B31F #1F8AB3 #921FB3 #B3481F

split-complementary

#40B31F #481FB3 #B31F8A

monochromatic

#1B4B0D #2D7F16 #40B31F #59DC33 #84E568

Accessibility & contrast

On white

2.73

#40B31F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.69

#40B31F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B31F

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B31F	#FFFFFF	#000000	##000000
##40B31F	1.00	2.73	7.69	7.69
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.69	21.00	1.00	1.00
##000000	7.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B8A200

Deuteranopia (green-blind)

#AA9932

Tritanopia (blue-blind)

#2EAD98

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #40b31f;
/* rgb */ color: rgb(64, 179, 31);
/* oklch */ color: oklch(67.5% 0.205 140.1);

Tailwind

colors: {
  custom: {
    50: '#84cb69',
    500: '#40b31f',
    950: '#000000',
  },
}

SCSS

$custom: #40b31f;
$custom-light: #84cb69;
$custom-dark: #000000;

JSON

{
  "hex": "#40b31f",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 31
  },
  "hsl": {
    "h": 106.622,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.67519,
    "c": 0.20509,
    "h": 140.1
  },
  "luminance": 0.33429
}

Semantic roles & 50–950 ramp

primary

#40B31F

secondary

#B364CA

accent

#3BEDC5

background

#F8FCF6

surface

#F0F9EC

border

#CBD2C7

text

#0C1307

muted

#7D827A

Preview Lab

Preview with #40B31F

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

Preview Lab → · Contrast checker → · Palette generator →