#424DA3#424DA3

#424DA3 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.9% C 0.138 H 274.2°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#424DA3
RGB	rgb(66, 77, 163)
HSL	hsl(233, 42%, 45%)
HSV	hsv(233, 60%, 64%)
CMYK	cmyk(59.5%, 52.8%, 0%, 36.1%)
CIE-LAB	lab(36.19, 22.39, -48.04)
CIE-LCH	lch(36.19, 53.00, 294.99°)
OKLab	oklab(45.86% 0.01 -0.1375)
OKLCH	oklch(45.86% 0.138 274.2)
XYZ	xyz(11.5093, 9.1095, 35.7950)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DA3 #A39842

analogous

#427DA3 #424DA3 #6842A3

triadic

#424DA3 #A3424D #4DA342

tetradic

#424DA3 #A3427D #A39842 #42A368

square

#424DA3 #A3427D #A39842 #42A368

split-complementary

#424DA3 #A36842 #7DA342

monochromatic

#1F244C #303877 #424DA3 #636DC0 #8E96D1

Accessibility & contrast

On white

7.44

#424DA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#424DA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424DA3

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DA3	#FFFFFF	#000000	##FFFFFF
##424DA3	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C59A6

Deuteranopia (green-blind)

#0151A1

Tritanopia (blue-blind)

#006170

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #424da3;
/* rgb */ color: rgb(66, 77, 163);
/* oklch */ color: oklch(45.9% 0.138 274.2);

Tailwind

colors: {
  custom: {
    50: '#7f7ebf',
    500: '#424da3',
    950: '#000000',
  },
}

SCSS

$custom: #424da3;
$custom-light: #7f7ebf;
$custom-dark: #000000;

JSON

{
  "hex": "#424da3",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 163
  },
  "hsl": {
    "h": 233.196,
    "s": 42.358,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45858,
    "c": 0.13791,
    "h": 274.2
  },
  "luminance": 0.0911
}

Semantic roles & 50–950 ramp

primary

#424DA3

secondary

#BCB684

accent

#C456D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0A12

muted

#7C7C81

Preview Lab

Preview with #424DA3

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

Preview Lab → · Contrast checker → · Palette generator →