#427DB2#427DB2

#427DB2 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.4% C 0.103 H 247.7°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#427DB2
RGB	rgb(66, 125, 178)
HSL	hsl(208, 46%, 48%)
HSV	hsv(208, 63%, 70%)
CMYK	cmyk(62.9%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(50.73, -2.58, -33.76)
CIE-LCH	lch(50.73, 33.86, 265.64°)
OKLab	oklab(57.36% -0.039 -0.0952)
OKLCH	oklch(57.36% 0.103 247.7)
XYZ	xyz(17.6133, 19.0381, 44.8574)
Luminance	0.1904 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DB2 #B27742

analogous

#42B2AF #427DB2 #4245B2

triadic

#427DB2 #B2427D #7DB242

tetradic

#427DB2 #AF42B2 #B27742 #45B242

square

#427DB2 #AF42B2 #B27742 #45B242

split-complementary

#427DB2 #B24245 #B2AF42

monochromatic

#213E59 #315E85 #427DB2 #6A9BC8 #96B9D8

Accessibility & contrast

On white

4.37

#427DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#427DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DB2

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DB2	#FFFFFF	#000000	##000000
##427DB2	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#667FB4

Deuteranopia (green-blind)

#5774B1

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #427db2;
/* rgb */ color: rgb(66, 125, 178);
/* oklch */ color: oklch(57.4% 0.103 247.7);

Tailwind

colors: {
  custom: {
    50: '#81a2c9',
    500: '#427db2',
    950: '#000000',
  },
}

SCSS

$custom: #427db2;
$custom-light: #81a2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#427db2",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 208.393,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57358,
    "c": 0.1029,
    "h": 247.7
  },
  "luminance": 0.1904
}

Semantic roles & 50–950 ramp

primary

#427DB2

secondary

#C4A68C

accent

#9052D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #427DB2

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

Preview Lab → · Contrast checker → · Palette generator →