#427BA1#427BA1

#427BA1 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.084 H 239.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX#427BA1
RGBrgb(66, 123, 161)
HSLhsl(204, 42%, 45%)
HSVhsv(204, 59%, 63%)
CMYKcmyk(59%, 23.6%, 0%, 36.9%)
CIE-LABlab(49.37, -7.07, -26.02)
CIE-LCHlch(49.37, 26.96, 254.79°)
OKLaboklab(56.03% -0.0424 -0.0728)
OKLCHoklch(56.03% 0.084 239.8)
XYZxyz(15.7604, 17.8959, 36.3350)
Luminance0.1790 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#427BA1 #A16842
analogous
#42A198 #427BA1 #424CA1
triadic
#427BA1 #A1427B #7BA142
tetradic
#427BA1 #9842A1 #A16842 #4CA142
square
#427BA1 #9842A1 #A16842 #4CA142
split-complementary
#427BA1 #A1424C #A19842
monochromatic
#1E394A #305A76 #427BA1 #6299BF #8DB5D0

Accessibility & contrast

On white

4.59
#427BA1 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.58
#427BA1 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #427BA1
4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##427BA1#FFFFFF#000000##FFFFFF
##427BA11.004.594.584.59
#FFFFFF4.591.0021.001.00
#0000004.5821.001.0021.00
##FFFFFF4.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#6A7BA3
Deuteranopia (green-blind)
#5D71A0
Tritanopia (blue-blind)
#008588
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #427ba1;
/* rgb */ color: rgb(66, 123, 161);
/* oklch */ color: oklch(56.0% 0.084 239.8);
Tailwind
colors: {
  custom: {
    50: '#7ea1bd',
    500: '#427ba1',
    950: '#000000',
  },
}
SCSS
$custom: #427ba1;
$custom-light: #7ea1bd;
$custom-dark: #000000;
JSON
{
  "hex": "#427ba1",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 161
  },
  "hsl": {
    "h": 204,
    "s": 41.85,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56031,
    "c": 0.08429,
    "h": 239.8
  },
  "luminance": 0.17897
}

Semantic roles & 50–950 ramp

primary
#427BA1
secondary
#BB9A83
accent
#8856D2
background
#F8F9FB
surface
#EFF2F6
border
#CACCD0
text
#0B0E12
muted
#7C7E81

Preview Lab

Preview with #427BA1

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

Preview Lab → · Contrast checker → · Palette generator →

#427BA1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva