#40B3CB#40B3CB

#40B3CB is a light, moderate cyan. Relative luminance 0.376; OKLCH L 71.2% C 0.106 H 214.4°. Best body text is #000000 at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#40B3CB
RGB	rgb(64, 179, 203)
HSL	hsl(190, 57%, 52%)
HSV	hsv(190, 68%, 80%)
CMYK	cmyk(68.5%, 11.8%, 0%, 20.4%)
CIE-LAB	lab(67.75, -24.36, -21.57)
CIE-LCH	lch(67.75, 32.54, 221.52°)
OKLab	oklab(71.24% -0.0877 -0.06)
OKLCH	oklch(71.24% 0.106 214.4)
XYZ	xyz(29.0094, 37.6387, 62.2245)
Luminance	0.3764 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B3CB #CB5840

analogous

#40CB9E #40B3CB #406DCB

triadic

#40B3CB #CB40B3 #B3CB40

tetradic

#40B3CB #9E40CB #CB5840 #6DCB40

square

#40B3CB #9E40CB #CB5840 #6DCB40

split-complementary

#40B3CB #CB406D #CB9E40

monochromatic

#1F6372 #2C8DA2 #40B3CB #70C6D8 #A0D9E5

Accessibility & contrast

On white

2.46

#40B3CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.53

#40B3CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B3CB

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B3CB	#FFFFFF	#000000	##000000
##40B3CB	1.00	2.46	8.53	8.53
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.53	21.00	1.00	1.00
##000000	8.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2ADCC

Deuteranopia (green-blind)

#8E9FCB

Tritanopia (blue-blind)

#00BCBA

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #40b3cb;
/* rgb */ color: rgb(64, 179, 203);
/* oklch */ color: oklch(71.2% 0.106 214.4);

Tailwind

colors: {
  custom: {
    50: '#86cada',
    500: '#40b3cb',
    950: '#000000',
  },
}

SCSS

$custom: #40b3cb;
$custom-light: #86cada;
$custom-dark: #000000;

JSON

{
  "hex": "#40b3cb",
  "rgb": {
    "r": 64,
    "g": 179,
    "b": 203
  },
  "hsl": {
    "h": 190.36,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.71239,
    "c": 0.10632,
    "h": 214.4
  },
  "luminance": 0.37642
}

Semantic roles & 50–950 ramp

primary

#40B3CB

secondary

#D2A095

accent

#6247E0

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #40B3CB

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

Preview Lab → · Contrast checker → · Palette generator →