#424DB5#424DB5

#424DB5 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.2% C 0.163 H 273.8°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#424DB5
RGB	rgb(66, 77, 181)
HSL	hsl(234, 47%, 48%)
HSV	hsv(234, 64%, 71%)
CMYK	cmyk(63.5%, 57.5%, 0%, 29%)
CIE-LAB	lab(37.48, 28.65, -56.65)
CIE-LCH	lch(37.48, 63.49, 296.83°)
OKLab	oklab(47.23% 0.0108 -0.1629)
OKLCH	oklch(47.23% 0.163 273.8)
XYZ	xyz(13.2384, 9.8011, 44.9013)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DB5 #B5AA42

analogous

#4286B5 #424DB5 #7042B5

triadic

#424DB5 #B5424D #4DB542

tetradic

#424DB5 #B54286 #B5AA42 #42B570

square

#424DB5 #B54286 #B5AA42 #42B570

split-complementary

#424DB5 #B57042 #86B542

monochromatic

#21275B #323A88 #424DB5 #6B74C9 #989ED9

Accessibility & contrast

On white

7.09

#424DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#424DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424DB5

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DB5	#FFFFFF	#000000	##FFFFFF
##424DB5	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB9

Deuteranopia (green-blind)

#0053B3

Tritanopia (blue-blind)

#006679

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #424db5;
/* rgb */ color: rgb(66, 77, 181);
/* oklch */ color: oklch(47.2% 0.163 273.8);

Tailwind

colors: {
  custom: {
    50: '#837ecc',
    500: '#424db5',
    950: '#000000',
  },
}

SCSS

$custom: #424db5;
$custom-light: #837ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#424db5",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 181
  },
  "hsl": {
    "h": 234.261,
    "s": 46.559,
    "l": 48.431
  },
  "oklch": {
    "l": 0.47232,
    "c": 0.16324,
    "h": 273.8
  },
  "luminance": 0.09802
}

Semantic roles & 50–950 ramp

primary

#424DB5

secondary

#C5C08E

accent

#CA52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #424DB5

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

Preview Lab → · Contrast checker → · Palette generator →