#427CB2#427CB2

#427CB2 is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.104 H 248.6°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#427CB2
RGB	rgb(66, 124, 178)
HSL	hsl(209, 46%, 48%)
HSV	hsv(209, 63%, 70%)
CMYK	cmyk(62.9%, 30.3%, 0%, 30.2%)
CIE-LAB	lab(50.44, -1.98, -34.23)
CIE-LCH	lch(50.44, 34.28, 266.68°)
OKLab	oklab(57.13% -0.0379 -0.0966)
OKLCH	oklch(57.13% 0.104 248.6)
XYZ	xyz(17.4873, 18.7862, 44.8154)
Luminance	0.1879 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427CB2 #B27842

analogous

#42B2B0 #427CB2 #4244B2

triadic

#427CB2 #B2427C #7CB242

tetradic

#427CB2 #B042B2 #B27842 #44B242

square

#427CB2 #B042B2 #B27842 #44B242

split-complementary

#427CB2 #B24244 #B2B042

monochromatic

#213E59 #315D85 #427CB2 #6A9AC8 #96B8D8

Accessibility & contrast

On white

4.41

#427CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#427CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427CB2

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427CB2	#FFFFFF	#000000	##000000
##427CB2	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB4

Deuteranopia (green-blind)

#5673B1

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427cb2;
/* rgb */ color: rgb(66, 124, 178);
/* oklch */ color: oklch(57.1% 0.104 248.6);

Tailwind

colors: {
  custom: {
    50: '#81a1c9',
    500: '#427cb2',
    950: '#000000',
  },
}

SCSS

$custom: #427cb2;
$custom-light: #81a1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#427cb2",
  "rgb": {
    "r": 66,
    "g": 124,
    "b": 178
  },
  "hsl": {
    "h": 208.929,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57126,
    "c": 0.10374,
    "h": 248.6
  },
  "luminance": 0.18788
}

Semantic roles & 50–950 ramp

primary

#427CB2

secondary

#C4A78C

accent

#9252D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #427CB2

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

Preview Lab → · Contrast checker → · Palette generator →