#424AB3#424AB3

#424AB3 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.5% C 0.164 H 274.7°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#424AB3
RGB	rgb(66, 74, 179)
HSL	hsl(236, 46%, 48%)
HSV	hsv(236, 63%, 70%)
CMYK	cmyk(63.1%, 58.7%, 0%, 29.8%)
CIE-LAB	lab(36.57, 29.88, -56.95)
CIE-LCH	lch(36.57, 64.31, 297.68°)
OKLab	oklab(46.51% 0.0136 -0.1638)
OKLCH	oklch(46.51% 0.164 274.7)
XYZ	xyz(12.8296, 9.3094, 43.7599)
Luminance	0.0931 (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

#424AB3 #B3AB42

analogous

#4282B3 #424AB3 #7242B3

triadic

#424AB3 #B3424A #4AB342

tetradic

#424AB3 #B34282 #B3AB42 #42B372

square

#424AB3 #B34282 #B3AB42 #42B372

split-complementary

#424AB3 #B37242 #82B342

monochromatic

#21255A #323886 #424AB3 #6A71C8 #979BD9

Accessibility & contrast

On white

7.34

#424AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#424AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AB3

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424AB3	#FFFFFF	#000000	##FFFFFF
##424AB3	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB7

Deuteranopia (green-blind)

#0051B1

Tritanopia (blue-blind)

#006377

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #424ab3;
/* rgb */ color: rgb(66, 74, 179);
/* oklch */ color: oklch(46.5% 0.164 274.7);

Tailwind

colors: {
  custom: {
    50: '#827ccb',
    500: '#424ab3',
    950: '#000000',
  },
}

SCSS

$custom: #424ab3;
$custom-light: #827ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#424ab3",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 179
  },
  "hsl": {
    "h": 235.752,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.46508,
    "c": 0.16434,
    "h": 274.7
  },
  "luminance": 0.0931
}

Semantic roles & 50–950 ramp

primary

#424AB3

secondary

#C4C08C

accent

#CC52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424AB3

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

Preview Lab → · Contrast checker → · Palette generator →