#40B371#40B371

#40B371 is a light, vivid green. Relative luminance 0.345; OKLCH L 68.5% C 0.142 H 154.5°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#40B371
RGB	rgb(64, 179, 113)
HSL	hsl(146, 47%, 48%)
HSV	hsv(146, 64%, 70%)
CMYK	cmyk(64.2%, 0%, 36.9%, 29.8%)
CIE-LAB	lab(65.37, -47.46, 24.44)
CIE-LCH	lch(65.37, 53.38, 152.75°)
OKLab	oklab(68.52% -0.1285 0.0612)
OKLCH	oklch(68.52% 0.142 154.5)
XYZ	xyz(21.2133, 34.5202, 21.1647)
Luminance	0.3452 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B371 #B34082

analogous

#49B340 #40B371 #40B3AA

triadic

#40B371 #7140B3 #B37140

tetradic

#40B371 #4049B3 #B34082 #B3AA40

square

#40B371 #4049B3 #B34082 #B3AA40

split-complementary

#40B371 #AA40B3 #B34049

monochromatic

#205938 #308655 #40B371 #67C991 #94D9B2

Accessibility & contrast

On white

2.66

#40B371 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#40B371 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B371

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B371	#FFFFFF	#000000	##000000
##40B371	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3A56D

Deuteranopia (green-blind)

#A49A75

Tritanopia (blue-blind)

#01B1A2

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #40b371;
/* rgb */ color: rgb(64, 179, 113);
/* oklch */ color: oklch(68.5% 0.142 154.5);

Tailwind

colors: {
  custom: {
    50: '#81cb9a',
    500: '#40b371',
    950: '#000000',
  },
}

SCSS

$custom: #40b371;
$custom-light: #81cb9a;
$custom-dark: #000000;

JSON

{
  "hex": "#40b371",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 113
  },
  "hsl": {
    "h": 145.565,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.68517,
    "c": 0.14236,
    "h": 154.5
  },
  "luminance": 0.34522
}

Semantic roles & 50–950 ramp

primary

#40B371

secondary

#C48AAC

accent

#519ED7

background

#F8FCF9

surface

#F0F8F2

border

#CBD1CC

text

#0B130E

muted

#7C827E

Preview Lab

Preview with #40B371

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

Preview Lab → · Contrast checker → · Palette generator →