#424EA8#424EA8

#424EA8 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.4% C 0.144 H 273.7°. Best body text is #FFFFFF at 7.27:1 contrast (WCAG AA passes).

Color values

HEX	#424EA8
RGB	rgb(66, 78, 168)
HSL	hsl(233, 44%, 46%)
HSV	hsv(233, 61%, 66%)
CMYK	cmyk(60.7%, 53.6%, 0%, 34.1%)
CIE-LAB	lab(36.81, 23.48, -50.04)
CIE-LCH	lch(36.81, 55.28, 295.13°)
OKLab	oklab(46.43% 0.0093 -0.1434)
OKLCH	oklch(46.43% 0.144 273.7)
XYZ	xyz(12.0367, 9.4332, 38.2247)
Luminance	0.0943 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EA8 #A89C42

analogous

#4281A8 #424EA8 #6942A8

triadic

#424EA8 #A8424E #4EA842

tetradic

#424EA8 #A84281 #A89C42 #42A869

square

#424EA8 #A84281 #A89C42 #42A869

split-complementary

#424EA8 #A86942 #81A842

monochromatic

#1F2550 #313A7C #424EA8 #6570C2 #9199D4

Accessibility & contrast

On white

7.27

#424EA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#424EA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EA8

7.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EA8	#FFFFFF	#000000	##FFFFFF
##424EA8	1.00	7.27	2.89	7.27
#FFFFFF	7.27	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#165BAB

Deuteranopia (green-blind)

#0052A6

Tritanopia (blue-blind)

#006373

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424ea8;
/* rgb */ color: rgb(66, 78, 168);
/* oklch */ color: oklch(46.4% 0.144 273.7);

Tailwind

colors: {
  custom: {
    50: '#807fc2',
    500: '#424ea8',
    950: '#000000',
  },
}

SCSS

$custom: #424ea8;
$custom-light: #807fc2;
$custom-dark: #000000;

JSON

{
  "hex": "#424ea8",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 168
  },
  "hsl": {
    "h": 232.941,
    "s": 43.59,
    "l": 45.882
  },
  "oklch": {
    "l": 0.46428,
    "c": 0.14373,
    "h": 273.7
  },
  "luminance": 0.09434
}

Semantic roles & 50–950 ramp

primary

#424EA8

secondary

#BFB887

accent

#C454D3

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #424EA8

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

Preview Lab → · Contrast checker → · Palette generator →