#424AA3#424AA3

#424AA3 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.3% C 0.142 H 275.3°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#424AA3
RGB	rgb(66, 74, 163)
HSL	hsl(235, 42%, 45%)
HSV	hsv(235, 60%, 64%)
CMYK	cmyk(59.5%, 54.6%, 0%, 36.1%)
CIE-LAB	lab(35.40, 24.34, -49.33)
CIE-LCH	lch(35.40, 55.01, 296.27°)
OKLab	oklab(45.26% 0.0132 -0.1414)
OKLCH	oklch(45.26% 0.142 275.3)
XYZ	xyz(11.3043, 8.6993, 35.7267)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424AA3 #A39B42

analogous

#427AA3 #424AA3 #6B42A3

triadic

#424AA3 #A3424A #4AA342

tetradic

#424AA3 #A3427A #A39B42 #42A36B

square

#424AA3 #A3427A #A39B42 #42A36B

split-complementary

#424AA3 #A36B42 #7AA342

monochromatic

#1F224C #303677 #424AA3 #636AC0 #8E94D1

Accessibility & contrast

On white

7.66

#424AA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#424AA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424AA3

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424AA3	#FFFFFF	#000000	##FFFFFF
##424AA3	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1057A6

Deuteranopia (green-blind)

#004FA1

Tritanopia (blue-blind)

#005F6F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #424aa3;
/* rgb */ color: rgb(66, 74, 163);
/* oklch */ color: oklch(45.3% 0.142 275.3);

Tailwind

colors: {
  custom: {
    50: '#7f7cbf',
    500: '#424aa3',
    950: '#000000',
  },
}

SCSS

$custom: #424aa3;
$custom-light: #7f7cbf;
$custom-dark: #000000;

JSON

{
  "hex": "#424aa3",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 163
  },
  "hsl": {
    "h": 235.052,
    "s": 42.358,
    "l": 44.902
  },
  "oklch": {
    "l": 0.45261,
    "c": 0.14197,
    "h": 275.3
  },
  "luminance": 0.087
}

Semantic roles & 50–950 ramp

primary

#424AA3

secondary

#BCB884

accent

#C856D2

background

#F8F7FB

surface

#EFEEF7

border

#CAC9D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #424AA3

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

Preview Lab → · Contrast checker → · Palette generator →