#428ED6#428ED6

#428ED6 is a light, vivid cyan. Relative luminance 0.254; OKLCH L 63.2% C 0.132 H 249.6°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX#428ED6
RGBrgb(66, 142, 214)
HSLhsl(209, 64%, 55%)
HSVhsv(209, 69%, 84%)
CMYKcmyk(69.2%, 33.6%, 0%, 16.1%)
CIE-LABlab(57.42, -0.21, -43.72)
CIE-LCHlch(57.42, 43.72, 269.72°)
OKLaboklab(63.19% -0.046 -0.124)
OKLCHoklch(63.19% 0.132 249.6)
XYZxyz(24.0528, 25.3567, 67.2320)
Luminance0.2536 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428ED6 #D68A42
analogous
#42D6D4 #428ED6 #4244D6
triadic
#428ED6 #D6428E #8ED642
tetradic
#428ED6 #D442D6 #D68A42 #44D642
square
#428ED6 #D442D6 #D68A42 #44D642
split-complementary
#428ED6 #D64244 #D6D442
monochromatic
#1C5082 #276FB4 #428ED6 #74ACE1 #A7CAEC

Accessibility & contrast

On white

3.46
#428ED6 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.07
#428ED6 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428ED6
6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428ED6#FFFFFF#000000##000000
##428ED61.003.466.076.07
#FFFFFF3.461.0021.0021.00
#0000006.0721.001.001.00
##0000006.0721.001.001.00

Color blindness preview

Protanopia (red-blind)
#6E92D9
Deuteranopia (green-blind)
#5984D5
Tritanopia (blue-blind)
#009FA8
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #428ed6;
/* rgb */ color: rgb(66, 142, 214);
/* oklch */ color: oklch(63.2% 0.132 249.6);
Tailwind
colors: {
  custom: {
    50: '#87aee3',
    500: '#428ed6',
    950: '#000000',
  },
}
SCSS
$custom: #428ed6;
$custom-light: #87aee3;
$custom-dark: #000000;
JSON
{
  "hex": "#428ed6",
  "rgb": {
    "r": 66,
    "g": 142,
    "b": 214
  },
  "hsl": {
    "h": 209.189,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.63187,
    "c": 0.13228,
    "h": 249.6
  },
  "luminance": 0.25359
}

Semantic roles & 50–950 ramp

primary
#428ED6
secondary
#D9B99B
accent
#9240E7
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0D1015
muted
#7D7F83

Preview Lab

Preview with #428ED6

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

Preview Lab → · Contrast checker → · Palette generator →

#428ED6 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva