#424AB4#424AB4

#424AB4 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.6% C 0.166 H 274.7°. Best body text is #FFFFFF at 7.32:1 contrast (WCAG AA passes).

Color values

HEX	#424AB4
RGB	rgb(66, 74, 180)
HSL	hsl(236, 46%, 48%)
HSV	hsv(236, 63%, 71%)
CMYK	cmyk(63.3%, 58.9%, 0%, 29.4%)
CIE-LAB	lab(36.65, 30.22, -57.42)
CIE-LCH	lch(36.65, 64.89, 297.76°)
OKLab	oklab(46.59% 0.0136 -0.1652)
OKLCH	oklch(46.59% 0.166 274.7)
XYZ	xyz(12.9311, 9.3500, 44.2945)
Luminance	0.0935 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424AB4 #B4AC42

analogous

#4283B4 #424AB4 #7342B4

triadic

#424AB4 #B4424A #4AB442

tetradic

#424AB4 #B44283 #B4AC42 #42B473

square

#424AB4 #B44283 #B4AC42 #42B473

split-complementary

#424AB4 #B47342 #83B442

monochromatic

#21255A #323887 #424AB4 #6B71C9 #979CD9

Accessibility & contrast

On white

7.32

#424AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#424AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AB4

7.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424AB4	#FFFFFF	#000000	##FFFFFF
##424AB4	1.00	7.32	2.87	7.32
#FFFFFF	7.32	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB8

Deuteranopia (green-blind)

#0051B2

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #424ab4;
/* rgb */ color: rgb(66, 74, 180);
/* oklch */ color: oklch(46.6% 0.166 274.7);

Tailwind

colors: {
  custom: {
    50: '#837ccb',
    500: '#424ab4',
    950: '#000000',
  },
}

SCSS

$custom: #424ab4;
$custom-light: #837ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#424ab4",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 180
  },
  "hsl": {
    "h": 235.789,
    "s": 46.341,
    "l": 48.235
  },
  "oklch": {
    "l": 0.46589,
    "c": 0.16572,
    "h": 274.7
  },
  "luminance": 0.09351
}

Semantic roles & 50–950 ramp

primary

#424AB4

secondary

#C5C18D

accent

#CD52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424AB4

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

Preview Lab → · Contrast checker → · Palette generator →