#40B4BF#40B4BF

#40B4BF is a light, moderate teal. Relative luminance 0.375; OKLCH L 71.0% C 0.103 H 204.1°. Best body text is #000000 at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#40B4BF
RGB	rgb(64, 180, 191)
HSL	hsl(185, 50%, 50%)
HSV	hsv(185, 66%, 75%)
CMYK	cmyk(66.5%, 5.8%, 0%, 25.1%)
CIE-LAB	lab(67.64, -28.49, -15.12)
CIE-LCH	lch(67.64, 32.25, 207.95°)
OKLab	oklab(71.02% -0.0937 -0.0419)
OKLCH	oklch(71.02% 0.103 204.1)
XYZ	xyz(27.8355, 37.4910, 55.0496)
Luminance	0.3749 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B4BF #BF4B40

analogous

#40BF8B #40B4BF #4074BF

triadic

#40B4BF #BF40B4 #B4BF40

tetradic

#40B4BF #8B40BF #BF4B40 #74BF40

square

#40B4BF #8B40BF #BF4B40 #74BF40

split-complementary

#40B4BF #BF4074 #BF8B40

monochromatic

#215E63 #318991 #40B4BF #6EC6CE #9CD8DE

Accessibility & contrast

On white

2.47

#40B4BF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.50

#40B4BF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B4BF

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B4BF	#FFFFFF	#000000	##000000
##40B4BF	1.00	2.47	8.50	8.50
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.50	21.00	1.00	1.00
##000000	8.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6ADC0

Deuteranopia (green-blind)

#939FBF

Tritanopia (blue-blind)

#00BBB7

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b4bf;
/* rgb */ color: rgb(64, 180, 191);
/* oklch */ color: oklch(71.0% 0.103 204.1);

Tailwind

colors: {
  custom: {
    50: '#85cbd2',
    500: '#40b4bf',
    950: '#000000',
  },
}

SCSS

$custom: #40b4bf;
$custom-light: #85cbd2;
$custom-dark: #000000;

JSON

{
  "hex": "#40b4bf",
  "rgb": {
    "r": 64,
    "g": 180,
    "b": 191
  },
  "hsl": {
    "h": 185.197,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.71016,
    "c": 0.10263,
    "h": 204.1
  },
  "luminance": 0.37494
}

Semantic roles & 50–950 ramp

primary

#40B4BF

secondary

#CA9691

accent

#5B4ED9

background

#F8FCFC

surface

#F0F8F9

border

#CBD1D2

text

#0C1314

muted

#7D8282

Preview Lab

Preview with #40B4BF

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

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