#40B181#40B181

#40B181 is a light, vivid teal. Relative luminance 0.341; OKLCH L 68.4% C 0.125 H 161.8°. Best body text is #000000 at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#40B181
RGB	rgb(64, 177, 129)
HSL	hsl(155, 47%, 47%)
HSV	hsv(155, 64%, 69%)
CMYK	cmyk(63.8%, 0%, 27.1%, 30.6%)
CIE-LAB	lab(65.06, -43.33, 15.35)
CIE-LCH	lch(65.06, 45.97, 160.49°)
OKLab	oklab(68.36% -0.1189 0.0391)
OKLCH	oklch(68.36% 0.125 161.8)
XYZ	xyz(21.7968, 34.1170, 26.2012)
Luminance	0.3412 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B181 #B14070

analogous

#40B148 #40B181 #40A9B1

triadic

#40B181 #8140B1 #B18140

tetradic

#40B181 #4840B1 #B14070 #A9B140

square

#40B181 #4840B1 #B14070 #A9B140

split-complementary

#40B181 #B140A9 #B14840

monochromatic

#1F573F #308460 #40B181 #66C89E #93D8BB

Accessibility & contrast

On white

2.68

#40B181 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.82

#40B181 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B181

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B181	#FFFFFF	#000000	##000000
##40B181	1.00	2.68	7.82	7.82
#FFFFFF	2.68	1.00	21.00	21.00
#000000	7.82	21.00	1.00	1.00
##000000	7.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEA47E

Deuteranopia (green-blind)

#9F9984

Tritanopia (blue-blind)

#00B1A4

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #40b181;
/* rgb */ color: rgb(64, 177, 129);
/* oklch */ color: oklch(68.4% 0.125 161.8);

Tailwind

colors: {
  custom: {
    50: '#81c9a5',
    500: '#40b181',
    950: '#000000',
  },
}

SCSS

$custom: #40b181;
$custom-light: #81c9a5;
$custom-dark: #000000;

JSON

{
  "hex": "#40b181",
  "rgb": {
    "r": 64,
    "g": 177,
    "b": 129
  },
  "hsl": {
    "h": 154.513,
    "s": 46.888,
    "l": 47.255
  },
  "oklch": {
    "l": 0.68358,
    "c": 0.12514,
    "h": 161.8
  },
  "luminance": 0.34119
}

Semantic roles & 50–950 ramp

primary

#40B181

secondary

#C389A2

accent

#518AD7

background

#F8FCFA

surface

#F0F8F4

border

#CBD1CE

text

#0B130F

muted

#7C827F

Preview Lab

Preview with #40B181

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

Preview Lab → · Contrast checker → · Palette generator →