#428AC7#428AC7

#428AC7 is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.5% C 0.118 H 246.8°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX#428AC7
RGBrgb(66, 138, 199)
HSLhsl(208, 54%, 52%)
HSVhsv(208, 67%, 78%)
CMYKcmyk(66.8%, 30.7%, 0%, 22%)
CIE-LABlab(55.54, -3.05, -38.23)
CIE-LCHlch(55.54, 38.35, 265.44°)
OKLaboklab(61.47% -0.0463 -0.1081)
OKLCHoklch(61.47% 0.118 246.8)
XYZxyz(21.6402, 23.4565, 57.4088)
Luminance0.2346 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428AC7 #C77F42
analogous
#42C7C2 #428AC7 #4248C7
triadic
#428AC7 #C7428A #8AC742
tetradic
#428AC7 #C242C7 #C77F42 #48C742
square
#428AC7 #C242C7 #C77F42 #48C742
split-complementary
#428AC7 #C74248 #C7C242
monochromatic
#214B6E #2F6A9D #428AC7 #71A7D5 #A0C4E3

Accessibility & contrast

On white

3.69
#428AC7 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.69
#428AC7 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428AC7
5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428AC7#FFFFFF#000000##000000
##428AC71.003.695.695.69
#FFFFFF3.691.0021.0021.00
#0000005.6921.001.001.00
##0000005.6921.001.001.00

Color blindness preview

Protanopia (red-blind)
#6F8CCA
Deuteranopia (green-blind)
#5D7FC6
Tritanopia (blue-blind)
#0099A0
Achromatopsia (no color)
#858585

Design tokens & code

CSS
--color: #428ac7;
/* rgb */ color: rgb(66, 138, 199);
/* oklch */ color: oklch(61.5% 0.118 246.8);
Tailwind
colors: {
  custom: {
    50: '#84abd8',
    500: '#428ac7',
    950: '#000000',
  },
}
SCSS
$custom: #428ac7;
$custom-light: #84abd8;
$custom-dark: #000000;
JSON
{
  "hex": "#428ac7",
  "rgb": {
    "r": 66,
    "g": 138,
    "b": 199
  },
  "hsl": {
    "h": 207.519,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.61469,
    "c": 0.11757,
    "h": 246.8
  },
  "luminance": 0.23459
}

Semantic roles & 50–950 ramp

primary
#428AC7
secondary
#D0B095
accent
#8E4ADE
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0C1014
muted
#7D7F83

Preview Lab

Preview with #428AC7

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

Preview Lab → · Contrast checker → · Palette generator →

#428AC7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva