#427AA4#427AA4

#427AA4 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.088 H 242.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#427AA4
RGB	rgb(66, 122, 164)
HSL	hsl(206, 43%, 45%)
HSV	hsv(206, 60%, 64%)
CMYK	cmyk(59.8%, 25.6%, 0%, 35.7%)
CIE-LAB	lab(49.20, -5.50, -28.03)
CIE-LCH	lch(49.20, 28.57, 258.89°)
OKLab	oklab(55.94% -0.0402 -0.0786)
OKLCH	oklch(55.94% 0.088 242.9)
XYZ	xyz(15.9047, 17.7562, 37.7039)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#427AA4 #A46C42

analogous

#42A49D #427AA4 #4249A4

triadic

#427AA4 #A4427A #7AA442

tetradic

#427AA4 #9D42A4 #A46C42 #49A442

square

#427AA4 #9D42A4 #A46C42 #49A442

split-complementary

#427AA4 #A44249 #A49D42

monochromatic

#1F394D #305A78 #427AA4 #6398C0 #8FB5D2

Accessibility & contrast

On white

4.61

#427AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#427AA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #427AA4

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##427AA4	#FFFFFF	#000000	##FFFFFF
##427AA4	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687AA6

Deuteranopia (green-blind)

#5A71A3

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #427aa4;
/* rgb */ color: rgb(66, 122, 164);
/* oklch */ color: oklch(55.9% 0.088 242.9);

Tailwind

colors: {
  custom: {
    50: '#7fa0bf',
    500: '#427aa4',
    950: '#000000',
  },
}

SCSS

$custom: #427aa4;
$custom-light: #7fa0bf;
$custom-dark: #000000;

JSON

{
  "hex": "#427aa4",
  "rgb": {
    "r": 66,
    "g": 122,
    "b": 164
  },
  "hsl": {
    "h": 205.714,
    "s": 42.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.55939,
    "c": 0.08833,
    "h": 242.9
  },
  "luminance": 0.17758
}

Semantic roles & 50–950 ramp

primary

#427AA4

secondary

#BD9D85

accent

#8B55D2

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #427AA4

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

Preview Lab → · Contrast checker → · Palette generator →