#40C2E3#40C2E3

#40C2E3 is a light, moderate cyan. Relative luminance 0.452; OKLCH L 75.8% C 0.119 H 218.6°. Best body text is #000000 at 10.04:1 contrast (WCAG AA passes).

Color values

HEX#40C2E3
RGBrgb(64, 194, 227)
HSLhsl(192, 74%, 57%)
HSVhsv(192, 72%, 89%)
CMYKcmyk(71.8%, 14.5%, 0%, 11%)
CIE-LABlab(73.03, -24.48, -26.61)
CIE-LCHlch(73.03, 36.16, 227.39°)
OKLaboklab(75.77% -0.0932 -0.0743)
OKLCHoklch(75.77% 0.119 218.6)
XYZxyz(35.2655, 45.2155, 79.5270)
Luminance0.4522 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40C2E3 #E36140
analogous
#40E3B2 #40C2E3 #4071E3
triadic
#40C2E3 #E340C2 #C2E340
tetradic
#40C2E3 #B240E3 #E36140 #71E340
square
#40C2E3 #B240E3 #E36140 #71E340
split-complementary
#40C2E3 #E34071 #E3B240
monochromatic
#167A93 #1DA6C8 #40C2E3 #75D3EB #ABE4F3

Accessibility & contrast

On white

2.09
#40C2E3 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.04
#40C2E3 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C2E3
10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40C2E3#FFFFFF#000000##000000
##40C2E31.002.0910.0410.04
#FFFFFF2.091.0021.0021.00
#00000010.0421.001.001.00
##00000010.0421.001.001.00

Color blindness preview

Protanopia (red-blind)
#ADBDE5
Deuteranopia (green-blind)
#97ACE3
Tritanopia (blue-blind)
#00CDCC
Achromatopsia (no color)
#B3B3B3

Design tokens & code

CSS
--color: #40c2e3;
/* rgb */ color: rgb(64, 194, 227);
/* oklch */ color: oklch(75.8% 0.119 218.6);
Tailwind
colors: {
  custom: {
    50: '#8ad4eb',
    500: '#40c2e3',
    950: '#000000',
  },
}
SCSS
$custom: #40c2e3;
$custom-light: #8ad4eb;
$custom-dark: #000000;
JSON
{
  "hex": "#40c2e3",
  "rgb": {
    "r": 64,
    "g": 194,
    "b": 227
  },
  "hsl": {
    "h": 192.147,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.75769,
    "c": 0.11917,
    "h": 218.6
  },
  "luminance": 0.4522
}

Semantic roles & 50–950 ramp

primary
#40C2E3
secondary
#E1AC9E
accent
#5C37F1
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0D1416
muted
#7E8384

Preview Lab

Preview with #40C2E3

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

Preview Lab → · Contrast checker → · Palette generator →

#40C2E3 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva