#427BC4#427BC4

#427BC4 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.9% C 0.128 H 255.5°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#427BC4
RGB	rgb(66, 123, 196)
HSL	hsl(214, 52%, 51%)
HSV	hsv(214, 66%, 77%)
CMYK	cmyk(66.3%, 37.2%, 0%, 23.1%)
CIE-LAB	lab(51.05, 4.84, -43.61)
CIE-LCH	lch(51.05, 43.88, 276.34°)
OKLab	oklab(57.9% -0.0319 -0.1239)
OKLCH	oklch(57.9% 0.128 255.5)
XYZ	xyz(19.2899, 19.3078, 54.9240)
Luminance	0.1931 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BC4 #C48B42

analogous

#42BCC4 #427BC4 #4A42C4

triadic

#427BC4 #C4427B #7BC442

tetradic

#427BC4 #C442BC #C48B42 #42C44A

square

#427BC4 #C442BC #C48B42 #42C44A

split-complementary

#427BC4 #C44A42 #BCC442

monochromatic

#21416A #305E99 #427BC4 #719CD3 #9FBCE1

Accessibility & contrast

On white

4.32

#427BC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#427BC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BC4

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BC4	#FFFFFF	#000000	##000000
##427BC4	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B80C7

Deuteranopia (green-blind)

#4874C3

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427bc4;
/* rgb */ color: rgb(66, 123, 196);
/* oklch */ color: oklch(57.9% 0.128 255.5);

Tailwind

colors: {
  custom: {
    50: '#84a0d6',
    500: '#427bc4',
    950: '#000000',
  },
}

SCSS

$custom: #427bc4;
$custom-light: #84a0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#427bc4",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 196
  },
  "hsl": {
    "h": 213.692,
    "s": 52.419,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57898,
    "c": 0.12799,
    "h": 255.5
  },
  "luminance": 0.1931
}

Semantic roles & 50–950 ramp

primary

#427BC4

secondary

#CEB494

accent

#9D4CDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #427BC4

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

Preview Lab → · Contrast checker → · Palette generator →