#40B0C8#40B0C8

#40B0C8 is a light, moderate cyan. Relative luminance 0.363; OKLCH L 70.4% C 0.105 H 214.8°. Best body text is #000000 at 8.26:1 contrast (WCAG AA passes).

Color values

HEX	#40B0C8
RGB	rgb(64, 176, 200)
HSL	hsl(191, 55%, 52%)
HSV	hsv(191, 68%, 78%)
CMYK	cmyk(68%, 12%, 0%, 21.6%)
CIE-LAB	lab(66.75, -23.77, -21.44)
CIE-LCH	lch(66.75, 32.01, 222.05°)
OKLab	oklab(70.4% -0.0859 -0.0597)
OKLCH	oklch(70.4% 0.105 214.8)
XYZ	xyz(28.0607, 36.3076, 60.1616)
Luminance	0.3631 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B0C8 #C85840

analogous

#40C89C #40B0C8 #406CC8

triadic

#40B0C8 #C840B0 #B0C840

tetradic

#40B0C8 #9C40C8 #C85840 #6CC840

square

#40B0C8 #9C40C8 #C85840 #6CC840

split-complementary

#40B0C8 #C8406C #C89C40

monochromatic

#20606E #2D8A9D #40B0C8 #70C4D6 #9FD7E3

Accessibility & contrast

On white

2.54

#40B0C8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.26

#40B0C8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B0C8

8.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B0C8	#FFFFFF	#000000	##000000
##40B0C8	1.00	2.54	8.26	8.26
#FFFFFF	2.54	1.00	21.00	21.00
#000000	8.26	21.00	1.00	1.00
##000000	8.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FAAC9

Deuteranopia (green-blind)

#8C9CC8

Tritanopia (blue-blind)

#00B9B7

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #40b0c8;
/* rgb */ color: rgb(64, 176, 200);
/* oklch */ color: oklch(70.4% 0.105 214.8);

Tailwind

colors: {
  custom: {
    50: '#86c7d8',
    500: '#40b0c8',
    950: '#000000',
  },
}

SCSS

$custom: #40b0c8;
$custom-light: #86c7d8;
$custom-dark: #000000;

JSON

{
  "hex": "#40b0c8",
  "rgb": {
    "r": 64,
    "g": 176,
    "b": 200
  },
  "hsl": {
    "h": 190.588,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.70401,
    "c": 0.10459,
    "h": 214.8
  },
  "luminance": 0.36311
}

Semantic roles & 50–950 ramp

primary

#40B0C8

secondary

#D09F94

accent

#6449DF

background

#F8FCFD

surface

#F0F8FA

border

#CBD1D3

text

#0C1314

muted

#7D8283

Preview Lab

Preview with #40B0C8

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

Preview Lab → · Contrast checker → · Palette generator →