#424AB8#424AB8

#424AB8 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.9% C 0.171 H 274.5°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#424AB8
RGB	rgb(66, 74, 184)
HSL	hsl(236, 47%, 49%)
HSV	hsv(236, 64%, 72%)
CMYK	cmyk(64.1%, 59.8%, 0%, 27.8%)
CIE-LAB	lab(36.96, 31.60, -59.27)
CIE-LCH	lch(36.96, 67.17, 298.06°)
OKLab	oklab(46.91% 0.0135 -0.1706)
OKLCH	oklch(46.91% 0.171 274.5)
XYZ	xyz(13.3444, 9.5154, 46.4715)
Luminance	0.0952 (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

#424AB8 #B8B042

analogous

#4285B8 #424AB8 #7542B8

triadic

#424AB8 #B8424A #4AB842

tetradic

#424AB8 #B84285 #B8B042 #42B875

square

#424AB8 #B84285 #B8B042 #42B875

split-complementary

#424AB8 #B87542 #85B842

monochromatic

#22265E #32388B #424AB8 #6D73CB #9A9EDB

Accessibility & contrast

On white

7.23

#424AB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#424AB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AB8

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424AB8	#FFFFFF	#000000	##FFFFFF
##424AB8	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CBC

Deuteranopia (green-blind)

#0052B6

Tritanopia (blue-blind)

#00657A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424ab8;
/* rgb */ color: rgb(66, 74, 184);
/* oklch */ color: oklch(46.9% 0.171 274.5);

Tailwind

colors: {
  custom: {
    50: '#837cce',
    500: '#424ab8',
    950: '#000000',
  },
}

SCSS

$custom: #424ab8;
$custom-light: #837cce;
$custom-dark: #000000;

JSON

{
  "hex": "#424ab8",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 184
  },
  "hsl": {
    "h": 235.932,
    "s": 47.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.46914,
    "c": 0.17115,
    "h": 274.5
  },
  "luminance": 0.09517
}

Semantic roles & 50–950 ramp

primary

#424AB8

secondary

#C7C38F

accent

#CE51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #424AB8

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

Preview Lab → · Contrast checker → · Palette generator →