#40B399#40B399

#40B399 is a light, moderate teal. Relative luminance 0.356; OKLCH L 69.5% C 0.110 H 175.0°. Best body text is #000000 at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#40B399
RGB	rgb(64, 179, 153)
HSL	hsl(166, 47%, 48%)
HSV	hsv(166, 64%, 70%)
CMYK	cmyk(64.2%, 0%, 14.5%, 29.8%)
CIE-LAB	lab(66.23, -38.51, 3.82)
CIE-LCH	lch(66.23, 38.70, 174.34°)
OKLab	oklab(69.51% -0.1096 0.0095)
OKLCH	oklch(69.51% 0.11 175)
XYZ	xyz(23.9814, 35.6275, 35.7438)
Luminance	0.3563 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B399 #B3405A

analogous

#40B360 #40B399 #4093B3

triadic

#40B399 #9940B3 #B39940

tetradic

#40B399 #6040B3 #B3405A #93B340

square

#40B399 #6040B3 #B3405A #93B340

split-complementary

#40B399 #B34093 #B36040

monochromatic

#20594C #308672 #40B399 #67C9B3 #94D9C9

Accessibility & contrast

On white

2.58

#40B399 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.13

#40B399 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B399

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B399	#FFFFFF	#000000	##000000
##40B399	1.00	2.58	8.13	8.13
#FFFFFF	2.58	1.00	21.00	21.00
#000000	8.13	21.00	1.00	1.00
##000000	8.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADA898

Deuteranopia (green-blind)

#9C9C9B

Tritanopia (blue-blind)

#00B5AB

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #40b399;
/* rgb */ color: rgb(64, 179, 153);
/* oklch */ color: oklch(69.5% 0.110 175.0);

Tailwind

colors: {
  custom: {
    50: '#82cab7',
    500: '#40b399',
    950: '#000000',
  },
}

SCSS

$custom: #40b399;
$custom-light: #82cab7;
$custom-dark: #000000;

JSON

{
  "hex": "#40b399",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 153
  },
  "hsl": {
    "h": 166.435,
    "s": 47.325,
    "l": 47.647
  },
  "oklch": {
    "l": 0.69506,
    "c": 0.11003,
    "h": 175
  },
  "luminance": 0.3563
}

Semantic roles & 50–950 ramp

primary

#40B399

secondary

#C48A98

accent

#516FD7

background

#F8FCFB

surface

#F0F8F6

border

#CBD1D0

text

#0C1311

muted

#7D8280

Preview Lab

Preview with #40B399

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

Preview Lab → · Contrast checker → · Palette generator →