#424BB4#424BB4

#424BB4 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.8% C 0.164 H 274.4°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#424BB4
RGB	rgb(66, 75, 180)
HSL	hsl(235, 46%, 48%)
HSV	hsv(235, 63%, 71%)
CMYK	cmyk(63.3%, 58.3%, 0%, 29.4%)
CIE-LAB	lab(36.90, 29.58, -57.01)
CIE-LCH	lch(36.90, 64.23, 297.43°)
OKLab	oklab(46.78% 0.0126 -0.164)
OKLCH	oklch(46.78% 0.164 274.4)
XYZ	xyz(12.9983, 9.4846, 44.3169)
Luminance	0.0949 (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

#424BB4 #B4AB42

analogous

#4284B4 #424BB4 #7242B4

triadic

#424BB4 #B4424B #4BB442

tetradic

#424BB4 #B44284 #B4AB42 #42B472

square

#424BB4 #B44284 #B4AB42 #42B472

split-complementary

#424BB4 #B47242 #84B442

monochromatic

#21265A #323887 #424BB4 #6B72C9 #979DD9

Accessibility & contrast

On white

7.25

#424BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#424BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424BB4

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BB4	#FFFFFF	#000000	##FFFFFF
##424BB4	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB8

Deuteranopia (green-blind)

#0052B2

Tritanopia (blue-blind)

#006478

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #424bb4;
/* rgb */ color: rgb(66, 75, 180);
/* oklch */ color: oklch(46.8% 0.164 274.4);

Tailwind

colors: {
  custom: {
    50: '#837dcb',
    500: '#424bb4',
    950: '#000000',
  },
}

SCSS

$custom: #424bb4;
$custom-light: #837dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#424bb4",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 180
  },
  "hsl": {
    "h": 235.263,
    "s": 46.341,
    "l": 48.235
  },
  "oklch": {
    "l": 0.46776,
    "c": 0.16444,
    "h": 274.4
  },
  "luminance": 0.09486
}

Semantic roles & 50–950 ramp

primary

#424BB4

secondary

#C5C08D

accent

#CC52D6

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0C0913

muted

#7D7B82

Preview Lab

Preview with #424BB4

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

Preview Lab → · Contrast checker → · Palette generator →