#424DA4#424DA4

#424DA4 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.9% C 0.139 H 274.1°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#424DA4
RGB	rgb(66, 77, 164)
HSL	hsl(233, 43%, 45%)
HSV	hsv(233, 60%, 64%)
CMYK	cmyk(59.8%, 53%, 0%, 35.7%)
CIE-LAB	lab(36.26, 22.74, -48.53)
CIE-LCH	lch(36.26, 53.59, 295.10°)
OKLab	oklab(45.93% 0.0101 -0.139)
OKLCH	oklch(45.93% 0.139 274.1)
XYZ	xyz(11.5993, 9.1455, 36.2688)
Luminance	0.0915 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DA4 #A49942

analogous

#427EA4 #424DA4 #6842A4

triadic

#424DA4 #A4424D #4DA442

tetradic

#424DA4 #A4427E #A49942 #42A468

square

#424DA4 #A4427E #A49942 #42A468

split-complementary

#424DA4 #A46842 #7EA442

monochromatic

#1F244D #303978 #424DA4 #636DC0 #8F96D2

Accessibility & contrast

On white

7.42

#424DA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#424DA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424DA4

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DA4	#FFFFFF	#000000	##FFFFFF
##424DA4	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A5AA7

Deuteranopia (green-blind)

#0051A2

Tritanopia (blue-blind)

#006171

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #424da4;
/* rgb */ color: rgb(66, 77, 164);
/* oklch */ color: oklch(45.9% 0.139 274.1);

Tailwind

colors: {
  custom: {
    50: '#7f7ec0',
    500: '#424da4',
    950: '#000000',
  },
}

SCSS

$custom: #424da4;
$custom-light: #7f7ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#424da4",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 164
  },
  "hsl": {
    "h": 233.265,
    "s": 42.609,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45932,
    "c": 0.13935,
    "h": 274.1
  },
  "luminance": 0.09146
}

Semantic roles & 50–950 ramp

primary

#424DA4

secondary

#BDB785

accent

#C455D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #424DA4

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

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