#40C1E1#40C1E1

#40C1E1 is a light, moderate cyan. Relative luminance 0.447; OKLCH L 75.5% C 0.118 H 218.1°. Best body text is #000000 at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#40C1E1
RGB	rgb(64, 193, 225)
HSL	hsl(192, 73%, 57%)
HSV	hsv(192, 72%, 88%)
CMYK	cmyk(71.6%, 14.2%, 0%, 11.8%)
CIE-LAB	lab(72.67, -24.60, -26.08)
CIE-LCH	lch(72.67, 35.85, 226.68°)
OKLab	oklab(75.45% -0.093 -0.0728)
OKLCH	oklch(75.45% 0.118 218.1)
XYZ	xyz(34.7692, 44.6621, 78.0078)
Luminance	0.4467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40C1E1 #E16040

analogous

#40E1B0 #40C1E1 #4071E1

triadic

#40C1E1 #E140C1 #C1E140

tetradic

#40C1E1 #B040E1 #E16040 #71E140

square

#40C1E1 #B040E1 #E16040 #71E140

split-complementary

#40C1E1 #E14071 #E1B040

monochromatic

#177890 #1FA4C5 #40C1E1 #75D2E9 #AAE3F2

Accessibility & contrast

On white

2.11

#40C1E1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.93

#40C1E1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C1E1

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40C1E1	#FFFFFF	#000000	##000000
##40C1E1	1.00	2.11	9.93	9.93
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.93	21.00	1.00	1.00
##000000	9.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACBBE3

Deuteranopia (green-blind)

#96ABE1

Tritanopia (blue-blind)

#00CCCB

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #40c1e1;
/* rgb */ color: rgb(64, 193, 225);
/* oklch */ color: oklch(75.5% 0.118 218.1);

Tailwind

colors: {
  custom: {
    50: '#8ad4ea',
    500: '#40c1e1',
    950: '#000000',
  },
}

SCSS

$custom: #40c1e1;
$custom-light: #8ad4ea;
$custom-dark: #000000;

JSON

{
  "hex": "#40c1e1",
  "rgb": {
    "r": 64,
    "g": 193,
    "b": 225
  },
  "hsl": {
    "h": 191.925,
    "s": 72.851,
    "l": 56.667
  },
  "oklch": {
    "l": 0.75452,
    "c": 0.11809,
    "h": 218.1
  },
  "luminance": 0.44666
}

Semantic roles & 50–950 ramp

primary

#40C1E1

secondary

#DFAB9D

accent

#5D38F0

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #40C1E1

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

Preview Lab → · Contrast checker → · Palette generator →