#427DC9#427DC9

#427DC9 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.6% C 0.132 H 255.7°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#427DC9
RGB	rgb(66, 125, 201)
HSL	hsl(214, 56%, 52%)
HSV	hsv(214, 67%, 79%)
CMYK	cmyk(67.2%, 37.8%, 0%, 21.2%)
CIE-LAB	lab(51.88, 5.39, -45.14)
CIE-LCH	lch(51.88, 45.46, 276.80°)
OKLab	oklab(58.64% -0.0327 -0.1284)
OKLCH	oklch(58.64% 0.132 255.7)
XYZ	xyz(20.1192, 20.0405, 58.0549)
Luminance	0.2004 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DC9 #C98E42

analogous

#42C1C9 #427DC9 #4B42C9

triadic

#427DC9 #C9427D #7DC942

tetradic

#427DC9 #C942C1 #C98E42 #42C94B

square

#427DC9 #C942C1 #C98E42 #42C94B

split-complementary

#427DC9 #C94B42 #C1C942

monochromatic

#204370 #2E60A0 #427DC9 #729ED7 #A1BEE4

Accessibility & contrast

On white

4.19

#427DC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#427DC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DC9

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DC9	#FFFFFF	#000000	##000000
##427DC9	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B83CC

Deuteranopia (green-blind)

#4776C7

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #427dc9;
/* rgb */ color: rgb(66, 125, 201);
/* oklch */ color: oklch(58.6% 0.132 255.7);

Tailwind

colors: {
  custom: {
    50: '#84a2da',
    500: '#427dc9',
    950: '#000000',
  },
}

SCSS

$custom: #427dc9;
$custom-light: #84a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#427dc9",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 201
  },
  "hsl": {
    "h": 213.778,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.58637,
    "c": 0.13249,
    "h": 255.7
  },
  "luminance": 0.20043
}

Semantic roles & 50–950 ramp

primary

#427DC9

secondary

#D1B796

accent

#9D49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #427DC9

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

Preview Lab → · Contrast checker → · Palette generator →