#424AA4#424AA4

#424AA4 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.3% C 0.143 H 275.3°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#424AA4
RGB	rgb(66, 74, 164)
HSL	hsl(235, 43%, 45%)
HSV	hsv(235, 60%, 64%)
CMYK	cmyk(59.8%, 54.9%, 0%, 35.7%)
CIE-LAB	lab(35.47, 24.69, -49.81)
CIE-LCH	lch(35.47, 55.59, 296.36°)
OKLab	oklab(45.34% 0.0132 -0.1428)
OKLCH	oklch(45.34% 0.143 275.3)
XYZ	xyz(11.3942, 8.7353, 36.2004)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424AA4 #A49C42

analogous

#427BA4 #424AA4 #6B42A4

triadic

#424AA4 #A4424A #4AA442

tetradic

#424AA4 #A4427B #A49C42 #42A46B

square

#424AA4 #A4427B #A49C42 #42A46B

split-complementary

#424AA4 #A46B42 #7BA442

monochromatic

#1F234D #303678 #424AA4 #636BC0 #8F94D2

Accessibility & contrast

On white

7.64

#424AA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#424AA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AA4

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424AA4	#FFFFFF	#000000	##FFFFFF
##424AA4	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E58A7

Deuteranopia (green-blind)

#004FA2

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #424aa4;
/* rgb */ color: rgb(66, 74, 164);
/* oklch */ color: oklch(45.3% 0.143 275.3);

Tailwind

colors: {
  custom: {
    50: '#807cc0',
    500: '#424aa4',
    950: '#000000',
  },
}

SCSS

$custom: #424aa4;
$custom-light: #807cc0;
$custom-dark: #000000;

JSON

{
  "hex": "#424aa4",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 164
  },
  "hsl": {
    "h": 235.102,
    "s": 42.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45336,
    "c": 0.1434,
    "h": 275.3
  },
  "luminance": 0.08736
}

Semantic roles & 50–950 ramp

primary

#424AA4

secondary

#BDB885

accent

#C855D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #424AA4

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

Preview Lab → · Contrast checker → · Palette generator →