#40C6ED#40C6ED

#40C6ED is a light, vivid cyan. Relative luminance 0.476; OKLCH L 77.1% C 0.125 H 221.7°. Best body text is #000000 at 10.52:1 contrast (WCAG AA passes).

Color values

HEX#40C6ED
RGBrgb(64, 198, 237)
HSLhsl(194, 83%, 59%)
HSVhsv(194, 73%, 93%)
CMYKcmyk(73%, 16.5%, 0%, 7.1%)
CIE-LABlab(74.56, -23.36, -29.66)
CIE-LCHlch(74.56, 37.75, 231.78°)
OKLaboklab(77.12% -0.0932 -0.083)
OKLCHoklch(77.12% 0.125 221.7)
XYZxyz(37.5881, 47.5881, 87.3087)
Luminance0.4759 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#40C6ED #ED6740
analogous
#40EDBE #40C6ED #4070ED
triadic
#40C6ED #ED40C6 #C6ED40
tetradic
#40C6ED #BE40ED #ED6740 #70ED40
square
#40C6ED #BE40ED #ED6740 #70ED40
split-complementary
#40C6ED #ED4070 #EDBE40
monochromatic
#0F82A3 #15AEDB #40C6ED #78D7F2 #B0E7F8

Accessibility & contrast

On white

2.00
#40C6ED on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.52
#40C6ED on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40C6ED
10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##40C6ED#FFFFFF#000000##000000
##40C6ED1.002.0010.5210.52
#FFFFFF2.001.0021.0021.00
#00000010.5221.001.001.00
##00000010.5221.001.001.00

Color blindness preview

Protanopia (red-blind)
#AFC1EF
Deuteranopia (green-blind)
#98B0ED
Tritanopia (blue-blind)
#00D2D3
Achromatopsia (no color)
#B7B7B7

Design tokens & code

CSS
--color: #40c6ed;
/* rgb */ color: rgb(64, 198, 237);
/* oklch */ color: oklch(77.1% 0.125 221.7);
Tailwind
colors: {
  custom: {
    50: '#8cd7f3',
    500: '#40c6ed',
    950: '#000000',
  },
}
SCSS
$custom: #40c6ed;
$custom-light: #8cd7f3;
$custom-dark: #000000;
JSON
{
  "hex": "#40c6ed",
  "rgb": {
    "r": 64,
    "g": 198,
    "b": 237
  },
  "hsl": {
    "h": 193.526,
    "s": 82.775,
    "l": 59.02
  },
  "oklch": {
    "l": 0.7712,
    "c": 0.12481,
    "h": 221.7
  },
  "luminance": 0.47593
}

Semantic roles & 50–950 ramp

primary
#40C6ED
secondary
#E6B2A2
accent
#5C2FF9
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0E1417
muted
#7E8385

Preview Lab

Preview with #40C6ED

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

Preview Lab → · Contrast checker → · Palette generator →

#40C6ED Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva