#40B2CB#40B2CB

#40B2CB is a light, moderate cyan. Relative luminance 0.372; OKLCH L 71.0% C 0.106 H 215.3°. Best body text is #000000 at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#40B2CB
RGB	rgb(64, 178, 203)
HSL	hsl(191, 57%, 52%)
HSV	hsv(191, 68%, 80%)
CMYK	cmyk(68.5%, 12.3%, 0%, 20.4%)
CIE-LAB	lab(67.46, -23.86, -22.02)
CIE-LCH	lch(67.46, 32.47, 222.71°)
OKLab	oklab(71% -0.0867 -0.0613)
OKLCH	oklch(71% 0.106 215.3)
XYZ	xyz(28.8097, 37.2393, 62.1579)
Luminance	0.3724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B2CB #CB5940

analogous

#40CB9E #40B2CB #406DCB

triadic

#40B2CB #CB40B2 #B2CB40

tetradic

#40B2CB #9E40CB #CB5940 #6DCB40

square

#40B2CB #9E40CB #CB5940 #6DCB40

split-complementary

#40B2CB #CB406D #CB9E40

monochromatic

#1F6372 #2C8DA2 #40B2CB #70C5D8 #A0D9E5

Accessibility & contrast

On white

2.49

#40B2CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.45

#40B2CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B2CB

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B2CB	#FFFFFF	#000000	##000000
##40B2CB	1.00	2.49	8.45	8.45
#FFFFFF	2.49	1.00	21.00	21.00
#000000	8.45	21.00	1.00	1.00
##000000	8.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1ACCC

Deuteranopia (green-blind)

#8D9ECB

Tritanopia (blue-blind)

#00BBBA

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #40b2cb;
/* rgb */ color: rgb(64, 178, 203);
/* oklch */ color: oklch(71.0% 0.106 215.3);

Tailwind

colors: {
  custom: {
    50: '#86c9da',
    500: '#40b2cb',
    950: '#000000',
  },
}

SCSS

$custom: #40b2cb;
$custom-light: #86c9da;
$custom-dark: #000000;

JSON

{
  "hex": "#40b2cb",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 203
  },
  "hsl": {
    "h": 190.791,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.71,
    "c": 0.10623,
    "h": 215.3
  },
  "luminance": 0.37243
}

Semantic roles & 50–950 ramp

primary

#40B2CB

secondary

#D2A095

accent

#6347E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B2CB

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

Preview Lab → · Contrast checker → · Palette generator →