#424CB9#424CB9

#424CB9 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.4% C 0.170 H 274.0°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#424CB9
RGB	rgb(66, 76, 185)
HSL	hsl(235, 47%, 49%)
HSV	hsv(235, 64%, 73%)
CMYK	cmyk(64.3%, 58.9%, 0%, 27.5%)
CIE-LAB	lab(37.53, 30.68, -58.93)
CIE-LCH	lch(37.53, 66.43, 297.50°)
OKLab	oklab(47.37% 0.0117 -0.1696)
OKLCH	oklch(47.37% 0.17 274)
XYZ	xyz(13.5853, 9.8288, 47.0708)
Luminance	0.0983 (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

#424CB9 #B9AF42

analogous

#4288B9 #424CB9 #7442B9

triadic

#424CB9 #B9424C #4CB942

tetradic

#424CB9 #B94288 #B9AF42 #42B974

square

#424CB9 #B94288 #B9AF42 #42B974

split-complementary

#424CB9 #B97442 #88B942

monochromatic

#22275F #32398C #424CB9 #6D75CB #9AA0DB

Accessibility & contrast

On white

7.08

#424CB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#424CB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424CB9

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CB9	#FFFFFF	#000000	##FFFFFF
##424CB9	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBD

Deuteranopia (green-blind)

#0053B7

Tritanopia (blue-blind)

#00677B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #424cb9;
/* rgb */ color: rgb(66, 76, 185);
/* oklch */ color: oklch(47.4% 0.170 274.0);

Tailwind

colors: {
  custom: {
    50: '#837ecf',
    500: '#424cb9',
    950: '#000000',
  },
}

SCSS

$custom: #424cb9;
$custom-light: #837ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#424cb9",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 185
  },
  "hsl": {
    "h": 234.958,
    "s": 47.41,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47365,
    "c": 0.16999,
    "h": 274
  },
  "luminance": 0.0983
}

Semantic roles & 50–950 ramp

primary

#424CB9

secondary

#C7C290

accent

#CC51D7

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0914

muted

#7D7B82

Preview Lab

Preview with #424CB9

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

Preview Lab → · Contrast checker → · Palette generator →