#424EA4#424EA4

#424EA4 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.1% C 0.138 H 273.7°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#424EA4
RGB	rgb(66, 78, 164)
HSL	hsl(233, 43%, 45%)
HSV	hsv(233, 60%, 64%)
CMYK	cmyk(59.8%, 52.4%, 0%, 35.7%)
CIE-LAB	lab(36.53, 22.09, -48.10)
CIE-LCH	lch(36.53, 52.93, 294.66°)
OKLab	oklab(46.13% 0.009 -0.1377)
OKLCH	oklch(46.13% 0.138 273.7)
XYZ	xyz(11.6698, 9.2865, 36.2923)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EA4 #A49842

analogous

#427FA4 #424EA4 #6742A4

triadic

#424EA4 #A4424E #4EA442

tetradic

#424EA4 #A4427F #A49842 #42A467

square

#424EA4 #A4427F #A49842 #42A467

split-complementary

#424EA4 #A46742 #7FA442

monochromatic

#1F244D #303978 #424EA4 #636EC0 #8F97D2

Accessibility & contrast

On white

7.35

#424EA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#424EA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EA4

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EA4	#FFFFFF	#000000	##FFFFFF
##424EA4	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5AA7

Deuteranopia (green-blind)

#0352A2

Tritanopia (blue-blind)

#006271

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #424ea4;
/* rgb */ color: rgb(66, 78, 164);
/* oklch */ color: oklch(46.1% 0.138 273.7);

Tailwind

colors: {
  custom: {
    50: '#7f7fbf',
    500: '#424ea4',
    950: '#000000',
  },
}

SCSS

$custom: #424ea4;
$custom-light: #7f7fbf;
$custom-dark: #000000;

JSON

{
  "hex": "#424ea4",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 164
  },
  "hsl": {
    "h": 232.653,
    "s": 42.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46133,
    "c": 0.13801,
    "h": 273.7
  },
  "luminance": 0.09287
}

Semantic roles & 50–950 ramp

primary

#424EA4

secondary

#BDB685

accent

#C355D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #424EA4

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

Preview Lab → · Contrast checker → · Palette generator →