#427BC8#427BC8

#427BC8 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.133 H 256.6°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#427BC8
RGB	rgb(66, 123, 200)
HSL	hsl(214, 55%, 52%)
HSV	hsv(214, 67%, 78%)
CMYK	cmyk(67%, 38.5%, 0%, 21.6%)
CIE-LAB	lab(51.26, 6.25, -45.56)
CIE-LCH	lch(51.26, 45.99, 277.81°)
OKLab	oklab(58.13% -0.031 -0.1296)
OKLCH	oklch(58.13% 0.133 256.6)
XYZ	xyz(19.7513, 19.4923, 57.3539)
Luminance	0.1949 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427BC8 #C88F42

analogous

#42BEC8 #427BC8 #4C42C8

triadic

#427BC8 #C8427B #7BC842

tetradic

#427BC8 #C842BE #C88F42 #42C84C

square

#427BC8 #C842BE #C88F42 #42C84C

split-complementary

#427BC8 #C84C42 #BEC842

monochromatic

#20426F #2E5E9F #427BC8 #719CD6 #A1BDE4

Accessibility & contrast

On white

4.29

#427BC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#427BC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427BC8

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427BC8	#FFFFFF	#000000	##000000
##427BC8	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5881CB

Deuteranopia (green-blind)

#4574C6

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #427bc8;
/* rgb */ color: rgb(66, 123, 200);
/* oklch */ color: oklch(58.1% 0.133 256.6);

Tailwind

colors: {
  custom: {
    50: '#84a0d9',
    500: '#427bc8',
    950: '#000000',
  },
}

SCSS

$custom: #427bc8;
$custom-light: #84a0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#427bc8",
  "rgb": {
    "r": 66,
    "g": 123,
    "b": 200
  },
  "hsl": {
    "h": 214.478,
    "s": 54.918,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58133,
    "c": 0.13329,
    "h": 256.6
  },
  "luminance": 0.19494
}

Semantic roles & 50–950 ramp

primary

#427BC8

secondary

#D0B796

accent

#9F4ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #427BC8

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

Preview Lab → · Contrast checker → · Palette generator →