#427DAB#427DAB

#427DAB is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.0% C 0.094 H 244.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#427DAB
RGB	rgb(66, 125, 171)
HSL	hsl(206, 44%, 46%)
HSV	hsv(206, 61%, 67%)
CMYK	cmyk(61.4%, 26.9%, 0%, 32.9%)
CIE-LAB	lab(50.41, -4.93, -30.22)
CIE-LCH	lch(50.41, 30.62, 260.73°)
OKLab	oklab(57% -0.0412 -0.0849)
OKLCH	oklch(57% 0.094 244.1)
XYZ	xyz(16.9283, 18.7642, 41.2499)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427DAB #AB7042

analogous

#42ABA5 #427DAB #4248AB

triadic

#427DAB #AB427D #7DAB42

tetradic

#427DAB #A542AB #AB7042 #48AB42

square

#427DAB #A542AB #AB7042 #48AB42

split-complementary

#427DAB #AB4248 #ABA542

monochromatic

#203C53 #315D7F #427DAB #669BC4 #92B8D5

Accessibility & contrast

On white

4.42

#427DAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#427DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #427DAB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427DAB	#FFFFFF	#000000	##000000
##427DAB	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697EAD

Deuteranopia (green-blind)

#5B73AA

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #427dab;
/* rgb */ color: rgb(66, 125, 171);
/* oklch */ color: oklch(57.0% 0.094 244.1);

Tailwind

colors: {
  custom: {
    50: '#80a2c4',
    500: '#427dab',
    950: '#000000',
  },
}

SCSS

$custom: #427dab;
$custom-light: #80a2c4;
$custom-dark: #000000;

JSON

{
  "hex": "#427dab",
  "rgb": {
    "r": 66,
    "g": 125,
    "b": 171
  },
  "hsl": {
    "h": 206.286,
    "s": 44.304,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56999,
    "c": 0.09443,
    "h": 244.1
  },
  "luminance": 0.18766
}

Semantic roles & 50–950 ramp

primary

#427DAB

secondary

#C0A188

accent

#8C54D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F12

muted

#7C7E81

Preview Lab

Preview with #427DAB

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

Preview Lab → · Contrast checker → · Palette generator →