#40C0E1#40C0E1

#40C0E1 is a light, moderate cyan. Relative luminance 0.442; OKLCH L 75.2% C 0.118 H 218.8°. Best body text is #000000 at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#40C0E1
RGB	rgb(64, 192, 225)
HSL	hsl(192, 73%, 57%)
HSV	hsv(192, 72%, 88%)
CMYK	cmyk(71.6%, 14.7%, 0%, 11.8%)
CIE-LAB	lab(72.38, -24.10, -26.53)
CIE-LCH	lch(72.38, 35.84, 227.75°)
OKLab	oklab(75.22% -0.092 -0.0741)
OKLCH	oklch(75.22% 0.118 218.8)
XYZ	xyz(34.5489, 44.2215, 77.9343)
Luminance	0.4423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C0E1 #E16140

analogous

#40E1B2 #40C0E1 #4070E1

triadic

#40C0E1 #E140C0 #C0E140

tetradic

#40C0E1 #B240E1 #E16140 #70E140

square

#40C0E1 #B240E1 #E16140 #70E140

split-complementary

#40C0E1 #E14070 #E1B240

monochromatic

#177790 #1FA3C5 #40C0E1 #75D1E9 #AAE3F2

Accessibility & contrast

On white

2.13

#40C0E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.85

#40C0E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C0E1

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C0E1	#FFFFFF	#000000	##000000
##40C0E1	1.00	2.13	9.85	9.85
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.85	21.00	1.00	1.00
##000000	9.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABBBE3

Deuteranopia (green-blind)

#95AAE1

Tritanopia (blue-blind)

#00CBCA

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #40c0e1;
/* rgb */ color: rgb(64, 192, 225);
/* oklch */ color: oklch(75.2% 0.118 218.8);

Tailwind

colors: {
  custom: {
    50: '#8ad3ea',
    500: '#40c0e1',
    950: '#000000',
  },
}

SCSS

$custom: #40c0e1;
$custom-light: #8ad3ea;
$custom-dark: #000000;

JSON

{
  "hex": "#40c0e1",
  "rgb": {
    "r": 64,
    "g": 192,
    "b": 225
  },
  "hsl": {
    "h": 192.298,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.75217,
    "c": 0.11813,
    "h": 218.8
  },
  "luminance": 0.44226
}

Semantic roles & 50–950 ramp

primary

#40C0E1

secondary

#DFAB9D

accent

#5E38F0

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40C0E1

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

Preview Lab → · Contrast checker → · Palette generator →