#424EA9#424EA9

#424EA9 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.5% C 0.145 H 273.7°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#424EA9
RGB	rgb(66, 78, 169)
HSL	hsl(233, 44%, 46%)
HSV	hsv(233, 61%, 66%)
CMYK	cmyk(60.9%, 53.8%, 0%, 33.7%)
CIE-LAB	lab(36.88, 23.83, -50.53)
CIE-LCH	lch(36.88, 55.86, 295.25°)
OKLab	oklab(46.5% 0.0094 -0.1448)
OKLCH	oklch(46.5% 0.145 273.7)
XYZ	xyz(12.1302, 9.4706, 38.7172)
Luminance	0.0947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EA9 #A99D42

analogous

#4281A9 #424EA9 #6942A9

triadic

#424EA9 #A9424E #4EA942

tetradic

#424EA9 #A94281 #A99D42 #42A969

square

#424EA9 #A94281 #A99D42 #42A969

split-complementary

#424EA9 #A96942 #81A942

monochromatic

#202551 #313A7D #424EA9 #6570C3 #9199D4

Accessibility & contrast

On white

7.26

#424EA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#424EA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EA9

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EA9	#FFFFFF	#000000	##FFFFFF
##424EA9	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145BAC

Deuteranopia (green-blind)

#0052A7

Tritanopia (blue-blind)

#006374

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424ea9;
/* rgb */ color: rgb(66, 78, 169);
/* oklch */ color: oklch(46.5% 0.145 273.7);

Tailwind

colors: {
  custom: {
    50: '#807fc3',
    500: '#424ea9',
    950: '#000000',
  },
}

SCSS

$custom: #424ea9;
$custom-light: #807fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#424ea9",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 169
  },
  "hsl": {
    "h": 233.01,
    "s": 43.83,
    "l": 46.078
  },
  "oklch": {
    "l": 0.46502,
    "c": 0.14515,
    "h": 273.7
  },
  "luminance": 0.09472
}

Semantic roles & 50–950 ramp

primary

#424EA9

secondary

#C0B987

accent

#C554D4

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #424EA9

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

Preview Lab → · Contrast checker → · Palette generator →