#424BB1#424BB1

#424BB1 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.5% C 0.160 H 274.5°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#424BB1
RGB	rgb(66, 75, 177)
HSL	hsl(235, 46%, 48%)
HSV	hsv(235, 63%, 69%)
CMYK	cmyk(62.7%, 57.6%, 0%, 30.6%)
CIE-LAB	lab(36.68, 28.54, -55.60)
CIE-LCH	lch(36.68, 62.50, 297.17°)
OKLab	oklab(46.54% 0.0126 -0.1598)
OKLCH	oklch(46.54% 0.16 274.5)
XYZ	xyz(12.6960, 9.3637, 42.7248)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424BB1 #B1A842

analogous

#4283B1 #424BB1 #7042B1

triadic

#424BB1 #B1424B #4BB142

tetradic

#424BB1 #B14283 #B1A842 #42B170

square

#424BB1 #B14283 #B1A842 #42B170

split-complementary

#424BB1 #B17042 #83B142

monochromatic

#212558 #313884 #424BB1 #6971C7 #969BD8

Accessibility & contrast

On white

7.31

#424BB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#424BB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424BB1

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BB1	#FFFFFF	#000000	##FFFFFF
##424BB1	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB4

Deuteranopia (green-blind)

#0052AF

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #424bb1;
/* rgb */ color: rgb(66, 75, 177);
/* oklch */ color: oklch(46.5% 0.160 274.5);

Tailwind

colors: {
  custom: {
    50: '#827dc9',
    500: '#424bb1',
    950: '#000000',
  },
}

SCSS

$custom: #424bb1;
$custom-light: #827dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#424bb1",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 177
  },
  "hsl": {
    "h": 235.135,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.46536,
    "c": 0.16031,
    "h": 274.5
  },
  "luminance": 0.09365
}

Semantic roles & 50–950 ramp

primary

#424BB1

secondary

#C3BF8B

accent

#CB52D5

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #424BB1

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

Preview Lab → · Contrast checker → · Palette generator →