#427EC9#427EC9

#427EC9 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.9% C 0.131 H 255.1°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX#427EC9
RGBrgb(66, 126, 201)
HSLhsl(213, 56%, 52%)
HSVhsv(213, 67%, 79%)
CMYKcmyk(67.2%, 37.3%, 0%, 21.2%)
CIE-LABlab(52.17, 4.78, -44.68)
CIE-LCHlch(52.17, 44.94, 276.11°)
OKLaboklab(58.86% -0.0337 -0.127)
OKLCHoklch(58.86% 0.131 255.1)
XYZxyz(20.2464, 20.2949, 58.0973)
Luminance0.2030 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#427EC9 #C98D42
analogous
#42C2C9 #427EC9 #4942C9
triadic
#427EC9 #C9427E #7EC942
tetradic
#427EC9 #C942C2 #C98D42 #42C949
square
#427EC9 #C942C2 #C98D42 #42C949
split-complementary
#427EC9 #C94942 #C2C942
monochromatic
#204470 #2E61A0 #427EC9 #729ED7 #A1BFE4

Accessibility & contrast

On white

4.15
#427EC9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.06
#427EC9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427EC9
5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##427EC9#FFFFFF#000000##000000
##427EC91.004.155.065.06
#FFFFFF4.151.0021.0021.00
#0000005.0621.001.001.00
##0000005.0621.001.001.00

Color blindness preview

Protanopia (red-blind)
#5D83CC
Deuteranopia (green-blind)
#4977C7
Tritanopia (blue-blind)
#008F9A
Achromatopsia (no color)
#7C7C7C

Design tokens & code

CSS
--color: #427ec9;
/* rgb */ color: rgb(66, 126, 201);
/* oklch */ color: oklch(58.9% 0.131 255.1);
Tailwind
colors: {
  custom: {
    50: '#84a3da',
    500: '#427ec9',
    950: '#000000',
  },
}
SCSS
$custom: #427ec9;
$custom-light: #84a3da;
$custom-dark: #000000;
JSON
{
  "hex": "#427ec9",
  "rgb": {
    "r": 66,
    "g": 126,
    "b": 201
  },
  "hsl": {
    "h": 213.333,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.5886,
    "c": 0.13144,
    "h": 255.1
  },
  "luminance": 0.20297
}

Semantic roles & 50–950 ramp

primary
#427EC9
secondary
#D1B796
accent
#9C49DF
background
#F8F9FD
surface
#F0F2FA
border
#CBCCD3
text
#0C0F15
muted
#7D7E83

Preview Lab

Preview with #427EC9

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

Preview Lab → · Contrast checker → · Palette generator →

#427EC9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva