#424DB9#424DB9

#424DB9 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.6% C 0.169 H 273.7°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#424DB9
RGB	rgb(66, 77, 185)
HSL	hsl(234, 47%, 49%)
HSV	hsv(234, 64%, 73%)
CMYK	cmyk(64.3%, 58.4%, 0%, 27.5%)
CIE-LAB	lab(37.78, 30.04, -58.52)
CIE-LCH	lch(37.78, 65.78, 297.17°)
OKLab	oklab(47.55% 0.0109 -0.1684)
OKLCH	oklch(47.55% 0.169 273.7)
XYZ	xyz(13.6547, 9.9676, 47.0939)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DB9 #B9AE42

analogous

#4289B9 #424DB9 #7342B9

triadic

#424DB9 #B9424D #4DB942

tetradic

#424DB9 #B94289 #B9AE42 #42B973

square

#424DB9 #B94289 #B9AE42 #42B973

split-complementary

#424DB9 #B97342 #89B942

monochromatic

#22275F #323A8C #424DB9 #6D76CB #9AA0DB

Accessibility & contrast

On white

7.01

#424DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#424DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424DB9

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DB9	#FFFFFF	#000000	##FFFFFF
##424DB9	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBD

Deuteranopia (green-blind)

#0054B7

Tritanopia (blue-blind)

#00677B

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #424db9;
/* rgb */ color: rgb(66, 77, 185);
/* oklch */ color: oklch(47.6% 0.169 273.7);

Tailwind

colors: {
  custom: {
    50: '#837ecf',
    500: '#424db9',
    950: '#000000',
  },
}

SCSS

$custom: #424db9;
$custom-light: #837ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#424db9",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 185
  },
  "hsl": {
    "h": 234.454,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47551,
    "c": 0.16872,
    "h": 273.7
  },
  "luminance": 0.09969
}

Semantic roles & 50–950 ramp

primary

#424DB9

secondary

#C7C290

accent

#CB51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #424DB9

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

Preview Lab → · Contrast checker → · Palette generator →