#424AB5#424AB5

#424AB5 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.7% C 0.167 H 274.7°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#424AB5
RGB	rgb(66, 74, 181)
HSL	hsl(236, 47%, 48%)
HSV	hsv(236, 64%, 71%)
CMYK	cmyk(63.5%, 59.1%, 0%, 29%)
CIE-LAB	lab(36.73, 30.57, -57.88)
CIE-LCH	lch(36.73, 65.46, 297.84°)
OKLab	oklab(46.67% 0.0136 -0.1665)
OKLCH	oklch(46.67% 0.167 274.7)
XYZ	xyz(13.0333, 9.3909, 44.8329)
Luminance	0.0939 (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

#424AB5 #B5AD42

analogous

#4283B5 #424AB5 #7342B5

triadic

#424AB5 #B5424A #4AB542

tetradic

#424AB5 #B54283 #B5AD42 #42B573

square

#424AB5 #B54283 #B5AD42 #42B573

split-complementary

#424AB5 #B57342 #83B542

monochromatic

#21255B #323888 #424AB5 #6B72C9 #989DD9

Accessibility & contrast

On white

7.30

#424AB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#424AB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AB5

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424AB5	#FFFFFF	#000000	##FFFFFF
##424AB5	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB9

Deuteranopia (green-blind)

#0051B3

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #424ab5;
/* rgb */ color: rgb(66, 74, 181);
/* oklch */ color: oklch(46.7% 0.167 274.7);

Tailwind

colors: {
  custom: {
    50: '#837ccc',
    500: '#424ab5',
    950: '#000000',
  },
}

SCSS

$custom: #424ab5;
$custom-light: #837ccc;
$custom-dark: #000000;

JSON

{
  "hex": "#424ab5",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 181
  },
  "hsl": {
    "h": 235.826,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.4667,
    "c": 0.16708,
    "h": 274.7
  },
  "luminance": 0.09392
}

Semantic roles & 50–950 ramp

primary

#424AB5

secondary

#C5C18E

accent

#CD52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424AB5

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

Preview Lab → · Contrast checker → · Palette generator →