#427DB8#427DB8

#427DB8 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.7% C 0.110 H 250.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX#427DB8
RGBrgb(66, 125, 184)
HSLhsl(210, 47%, 49%)
HSVhsv(210, 64%, 72%)
CMYKcmyk(64.1%, 32.1%, 0%, 27.8%)
CIE-LABlab(51.02, -0.53, -36.77)
CIE-LCHlch(51.02, 36.78, 269.18°)
OKLaboklab(57.68% -0.0372 -0.1039)
OKLCHoklch(57.68% 0.11 250.3)
XYZxyz(18.2289, 19.2844, 48.0997)
Luminance0.1929 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#427DB8 #B87D42
analogous
#42B8B8 #427DB8 #4242B8
triadic
#427DB8 #B8427D #7DB842
tetradic
#427DB8 #B842B8 #B87D42 #42B842
square
#427DB8 #B842B8 #B87D42 #42B842
split-complementary
#427DB8 #B84242 #B8B842
monochromatic
#22405E #325E8B #427DB8 #6D9CCB #9ABADB

Accessibility & contrast

On white

4.32
#427DB8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.86
#427DB8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DB8
4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##427DB8#FFFFFF#000000##000000
##427DB81.004.324.864.86
#FFFFFF4.321.0021.0021.00
#0000004.8621.001.001.00
##0000004.8621.001.001.00

Color blindness preview

Protanopia (red-blind)
#6380BB
Deuteranopia (green-blind)
#5374B7
Tritanopia (blue-blind)
#008B92
Achromatopsia (no color)
#797979

Design tokens & code

CSS
--color: #427db8;
/* rgb */ color: rgb(66, 125, 184);
/* oklch */ color: oklch(57.7% 0.110 250.3);
Tailwind
colors: {
  custom: {
    50: '#82a2cd',
    500: '#427db8',
    950: '#000000',
  },
}
SCSS
$custom: #427db8;
$custom-light: #82a2cd;
$custom-dark: #000000;
JSON
{
  "hex": "#427db8",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 184
  },
  "hsl": {
    "h": 210,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57678,
    "c": 0.11041,
    "h": 250.3
  },
  "luminance": 0.19286
}

Semantic roles & 50–950 ramp

primary
#427DB8
secondary
#C7AB8F
accent
#9451D7
background
#F8F9FC
surface
#F0F2F9
border
#CBCCD2
text
#0B0F13
muted
#7C7E82

Preview Lab

Preview with #427DB8

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

Preview Lab → · Contrast checker → · Palette generator →

#427DB8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva