#40B9BB#40B9BB

#40B9BB is a light, moderate teal. Relative luminance 0.394; OKLCH L 72.1% C 0.105 H 196.7°. Best body text is #000000 at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#40B9BB
RGB	rgb(64, 185, 187)
HSL	hsl(181, 49%, 49%)
HSV	hsv(181, 66%, 73%)
CMYK	cmyk(65.8%, 1.1%, 0%, 26.7%)
CIE-LAB	lab(69.02, -32.08, -10.84)
CIE-LCH	lch(69.02, 33.87, 198.67°)
OKLab	oklab(72.09% -0.1005 -0.0301)
OKLCH	oklch(72.09% 0.105 196.7)
XYZ	xyz(28.4290, 39.3726, 53.1055)
Luminance	0.3938 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B9BB #BB4240

analogous

#40BB80 #40B9BB #407BBB

triadic

#40B9BB #BB40B9 #B9BB40

tetradic

#40B9BB #8040BB #BB4240 #7BBB40

square

#40B9BB #8040BB #BB4240 #7BBB40

split-complementary

#40B9BB #BB407B #BB8040

monochromatic

#215F60 #308C8D #40B9BB #6CCBCD #99DBDC

Accessibility & contrast

On white

2.37

#40B9BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.88

#40B9BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B9BB

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B9BB	#FFFFFF	#000000	##000000
##40B9BB	1.00	2.37	8.88	8.88
#FFFFFF	2.37	1.00	21.00	21.00
#000000	8.88	21.00	1.00	1.00
##000000	8.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADB0BB

Deuteranopia (green-blind)

#9AA3BC

Tritanopia (blue-blind)

#00BFB9

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #40b9bb;
/* rgb */ color: rgb(64, 185, 187);
/* oklch */ color: oklch(72.1% 0.105 196.7);

Tailwind

colors: {
  custom: {
    50: '#85cecf',
    500: '#40b9bb',
    950: '#000000',
  },
}

SCSS

$custom: #40b9bb;
$custom-light: #85cecf;
$custom-dark: #000000;

JSON

{
  "hex": "#40b9bb",
  "rgb": {
    "r": 64,
    "g": 185,
    "b": 187
  },
  "hsl": {
    "h": 180.976,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.72086,
    "c": 0.10494,
    "h": 196.7
  },
  "luminance": 0.39376
}

Semantic roles & 50–950 ramp

primary

#40B9BB

secondary

#C8908F

accent

#514FD9

background

#F8FCFC

surface

#F0F9F9

border

#CBD2D2

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #40B9BB

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

Preview Lab → · Contrast checker → · Palette generator →