#40B781#40B781

#40B781 is a light, vivid teal. Relative luminance 0.365; OKLCH L 69.9% C 0.133 H 160.0°. Best body text is #000000 at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#40B781
RGB	rgb(64, 183, 129)
HSL	hsl(153, 48%, 48%)
HSV	hsv(153, 65%, 72%)
CMYK	cmyk(65%, 0%, 29.5%, 28.2%)
CIE-LAB	lab(66.93, -45.84, 17.95)
CIE-LCH	lch(66.93, 49.23, 158.62°)
OKLab	oklab(69.89% -0.1252 0.0456)
OKLCH	oklch(69.89% 0.133 160)
XYZ	xyz(23.0081, 36.5395, 26.6049)
Luminance	0.3654 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B781 #B74076

analogous

#40B745 #40B781 #40B1B7

triadic

#40B781 #8140B7 #B78140

tetradic

#40B781 #4540B7 #B74076 #B1B740

square

#40B781 #4540B7 #B74076 #B1B740

split-complementary

#40B781 #B740B1 #B74540

monochromatic

#205C41 #308A61 #40B781 #69CB9F #97DBBC

Accessibility & contrast

On white

2.53

#40B781 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.31

#40B781 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B781

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B781	#FFFFFF	#000000	##000000
##40B781	1.00	2.53	8.31	8.31
#FFFFFF	2.53	1.00	21.00	21.00
#000000	8.31	21.00	1.00	1.00
##000000	8.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5AA7E

Deuteranopia (green-blind)

#A59E84

Tritanopia (blue-blind)

#00B6A9

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #40b781;
/* rgb */ color: rgb(64, 183, 129);
/* oklch */ color: oklch(69.9% 0.133 160.0);

Tailwind

colors: {
  custom: {
    50: '#82cda5',
    500: '#40b781',
    950: '#000000',
  },
}

SCSS

$custom: #40b781;
$custom-light: #82cda5;
$custom-dark: #000000;

JSON

{
  "hex": "#40b781",
  "rgb": {
    "r": 64,
    "g": 183,
    "b": 129
  },
  "hsl": {
    "h": 152.773,
    "s": 48.178,
    "l": 48.431
  },
  "oklch": {
    "l": 0.69894,
    "c": 0.13324,
    "h": 160
  },
  "luminance": 0.36542
}

Semantic roles & 50–950 ramp

primary

#40B781

secondary

#C68DA7

accent

#508ED8

background

#F8FCFA

surface

#F0F9F4

border

#CBD2CE

text

#0C140F

muted

#7D827F

Preview Lab

Preview with #40B781

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

Preview Lab → · Contrast checker → · Palette generator →