#40B4BB#40B4BB

#40B4BB is a light, moderate teal. Relative luminance 0.373; OKLCH L 70.9% C 0.102 H 200.8°. Best body text is #000000 at 8.46:1 contrast (WCAG AA passes).

Color values

HEX	#40B4BB
RGB	rgb(64, 180, 187)
HSL	hsl(183, 49%, 49%)
HSV	hsv(183, 66%, 73%)
CMYK	cmyk(65.8%, 3.7%, 0%, 26.7%)
CIE-LAB	lab(67.51, -29.67, -13.10)
CIE-LCH	lch(67.51, 32.44, 203.82°)
OKLab	oklab(70.87% -0.0954 -0.0363)
OKLCH	oklch(70.87% 0.102 200.8)
XYZ	xyz(27.4013, 37.3173, 52.7629)
Luminance	0.3732 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B4BB #BB4740

analogous

#40BB85 #40B4BB #4077BB

triadic

#40B4BB #BB40B4 #B4BB40

tetradic

#40B4BB #8540BB #BB4740 #77BB40

square

#40B4BB #8540BB #BB4740 #77BB40

split-complementary

#40B4BB #BB4077 #BB8540

monochromatic

#215C60 #30888D #40B4BB #6CC7CD #99D8DC

Accessibility & contrast

On white

2.48

#40B4BB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.46

#40B4BB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B4BB

8.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B4BB	#FFFFFF	#000000	##000000
##40B4BB	1.00	2.48	8.46	8.46
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.46	21.00	1.00	1.00
##000000	8.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A7ACBC

Deuteranopia (green-blind)

#959FBC

Tritanopia (blue-blind)

#00BBB6

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b4bb;
/* rgb */ color: rgb(64, 180, 187);
/* oklch */ color: oklch(70.9% 0.102 200.8);

Tailwind

colors: {
  custom: {
    50: '#85cbcf',
    500: '#40b4bb',
    950: '#000000',
  },
}

SCSS

$custom: #40b4bb;
$custom-light: #85cbcf;
$custom-dark: #000000;

JSON

{
  "hex": "#40b4bb",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 187
  },
  "hsl": {
    "h": 183.415,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.70868,
    "c": 0.10206,
    "h": 200.8
  },
  "luminance": 0.3732
}

Semantic roles & 50–950 ramp

primary

#40B4BB

secondary

#C8928F

accent

#574FD9

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1313

muted

#7D8282

Preview Lab

Preview with #40B4BB

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

Preview Lab → · Contrast checker → · Palette generator →