#40B5CB#40B5CB

#40B5CB is a light, moderate teal. Relative luminance 0.385; OKLCH L 71.7% C 0.107 H 212.6°. Best body text is #000000 at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#40B5CB
RGB	rgb(64, 181, 203)
HSL	hsl(189, 57%, 52%)
HSV	hsv(189, 68%, 80%)
CMYK	cmyk(68.5%, 10.8%, 0%, 20.4%)
CIE-LAB	lab(68.35, -25.37, -20.66)
CIE-LCH	lch(68.35, 32.72, 219.16°)
OKLab	oklab(71.72% -0.0898 -0.0575)
OKLCH	oklch(71.72% 0.107 212.6)
XYZ	xyz(29.4132, 38.4462, 62.3590)
Luminance	0.3845 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B5CB #CB5640

analogous

#40CB9B #40B5CB #4070CB

triadic

#40B5CB #CB40B5 #B5CB40

tetradic

#40B5CB #9B40CB #CB5640 #70CB40

square

#40B5CB #9B40CB #CB5640 #70CB40

split-complementary

#40B5CB #CB4070 #CB9B40

monochromatic

#1F6572 #2C8FA2 #40B5CB #70C8D8 #A0DAE5

Accessibility & contrast

On white

2.42

#40B5CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.69

#40B5CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B5CB

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B5CB	#FFFFFF	#000000	##000000
##40B5CB	1.00	2.42	8.69	8.69
#FFFFFF	2.42	1.00	21.00	21.00
#000000	8.69	21.00	1.00	1.00
##000000	8.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4AFCC

Deuteranopia (green-blind)

#90A0CB

Tritanopia (blue-blind)

#00BEBC

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #40b5cb;
/* rgb */ color: rgb(64, 181, 203);
/* oklch */ color: oklch(71.7% 0.107 212.6);

Tailwind

colors: {
  custom: {
    50: '#86cbda',
    500: '#40b5cb',
    950: '#000000',
  },
}

SCSS

$custom: #40b5cb;
$custom-light: #86cbda;
$custom-dark: #000000;

JSON

{
  "hex": "#40b5cb",
  "rgb": {
    "r": 64,
    "g": 181,
    "b": 203
  },
  "hsl": {
    "h": 189.496,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.71718,
    "c": 0.1066,
    "h": 212.6
  },
  "luminance": 0.3845
}

Semantic roles & 50–950 ramp

primary

#40B5CB

secondary

#D29F95

accent

#6047E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B5CB

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

Preview Lab → · Contrast checker → · Palette generator →