#428CCA#428CCA

#428CCA is a light, moderate cyan. Relative luminance 0.242; OKLCH L 62.1% C 0.119 H 246.6°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX#428CCA
RGBrgb(66, 140, 202)
HSLhsl(207, 56%, 53%)
HSVhsv(207, 67%, 79%)
CMYKcmyk(67.3%, 30.7%, 0%, 20.8%)
CIE-LABlab(56.26, -3.18, -38.79)
CIE-LCHlch(56.26, 38.92, 265.31°)
OKLaboklab(62.09% -0.0474 -0.1097)
OKLCHoklch(62.09% 0.119 246.6)
XYZxyz(22.2815, 24.1764, 59.3579)
Luminance0.2418 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#428CCA #CA8042
analogous
#42CAC4 #428CCA #4248CA
triadic
#428CCA #CA428C #8CCA42
tetradic
#428CCA #C442CA #CA8042 #48CA42
square
#428CCA #C442CA #CA8042 #48CA42
split-complementary
#428CCA #CA4248 #CAC442
monochromatic
#204C72 #2D6DA2 #428CCA #72A9D7 #A2C6E5

Accessibility & contrast

On white

3.60
#428CCA on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.84
#428CCA on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #428CCA
5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##428CCA#FFFFFF#000000##000000
##428CCA1.003.605.845.84
#FFFFFF3.601.0021.0021.00
#0000005.8421.001.001.00
##0000005.8421.001.001.00

Color blindness preview

Protanopia (red-blind)
#708ECD
Deuteranopia (green-blind)
#5E81C9
Tritanopia (blue-blind)
#009BA2
Achromatopsia (no color)
#878787

Design tokens & code

CSS
--color: #428cca;
/* rgb */ color: rgb(66, 140, 202);
/* oklch */ color: oklch(62.1% 0.119 246.6);
Tailwind
colors: {
  custom: {
    50: '#85adda',
    500: '#428cca',
    950: '#000000',
  },
}
SCSS
$custom: #428cca;
$custom-light: #85adda;
$custom-dark: #000000;
JSON
{
  "hex": "#428cca",
  "rgb": {
    "r": 66,
    "g": 140,
    "b": 202
  },
  "hsl": {
    "h": 207.353,
    "s": 56.198,
    "l": 52.549
  },
  "oklch": {
    "l": 0.62087,
    "c": 0.11949,
    "h": 246.6
  },
  "luminance": 0.24179
}

Semantic roles & 50–950 ramp

primary
#428CCA
secondary
#D1B196
accent
#8D48DF
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #428CCA

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

Preview Lab → · Contrast checker → · Palette generator →

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