#424EA5#424EA5

#424EA5 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.2% C 0.139 H 273.7°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#424EA5
RGB	rgb(66, 78, 165)
HSL	hsl(233, 43%, 45%)
HSV	hsv(233, 60%, 65%)
CMYK	cmyk(60%, 52.7%, 0%, 35.3%)
CIE-LAB	lab(36.60, 22.44, -48.59)
CIE-LCH	lch(36.60, 53.52, 294.79°)
OKLab	oklab(46.21% 0.0091 -0.1391)
OKLCH	oklch(46.21% 0.139 273.7)
XYZ	xyz(11.7605, 9.3227, 36.7697)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EA5 #A59942

analogous

#4280A5 #424EA5 #6742A5

triadic

#424EA5 #A5424E #4EA542

tetradic

#424EA5 #A54280 #A59942 #42A567

square

#424EA5 #A54280 #A59942 #42A567

split-complementary

#424EA5 #A56742 #80A542

monochromatic

#1F254E #313979 #424EA5 #636FC1 #8F97D2

Accessibility & contrast

On white

7.33

#424EA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#424EA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424EA5

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EA5	#FFFFFF	#000000	##FFFFFF
##424EA5	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C5BA8

Deuteranopia (green-blind)

#0052A3

Tritanopia (blue-blind)

#006272

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #424ea5;
/* rgb */ color: rgb(66, 78, 165);
/* oklch */ color: oklch(46.2% 0.139 273.7);

Tailwind

colors: {
  custom: {
    50: '#807fc0',
    500: '#424ea5',
    950: '#000000',
  },
}

SCSS

$custom: #424ea5;
$custom-light: #807fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#424ea5",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 165
  },
  "hsl": {
    "h": 232.727,
    "s": 42.857,
    "l": 45.294
  },
  "oklch": {
    "l": 0.46206,
    "c": 0.13944,
    "h": 273.7
  },
  "luminance": 0.09324
}

Semantic roles & 50–950 ramp

primary

#424EA5

secondary

#BDB785

accent

#C355D3

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #424EA5

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

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