#424FB3#424FB3

#424FB3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.5% C 0.158 H 273.2°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#424FB3
RGB	rgb(66, 79, 179)
HSL	hsl(233, 46%, 48%)
HSV	hsv(233, 63%, 70%)
CMYK	cmyk(63.1%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(37.85, 26.67, -54.88)
CIE-LCH	lch(37.85, 61.02, 295.92°)
OKLab	oklab(47.46% 0.0089 -0.1577)
OKLCH	oklch(47.46% 0.158 273.2)
XYZ	xyz(13.1767, 10.0038, 43.8756)
Luminance	0.1001 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FB3 #B3A642

analogous

#4287B3 #424FB3 #6D42B3

triadic

#424FB3 #B3424F #4FB342

tetradic

#424FB3 #B34287 #B3A642 #42B36D

square

#424FB3 #B34287 #B3A642 #42B36D

split-complementary

#424FB3 #B36D42 #87B342

monochromatic

#21285A #323B86 #424FB3 #6A75C8 #979ED9

Accessibility & contrast

On white

7.00

#424FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#424FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FB3

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FB3	#FFFFFF	#000000	##FFFFFF
##424FB3	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #424fb3;
/* rgb */ color: rgb(66, 79, 179);
/* oklch */ color: oklch(47.5% 0.158 273.2);

Tailwind

colors: {
  custom: {
    50: '#8280ca',
    500: '#424fb3',
    950: '#000000',
  },
}

SCSS

$custom: #424fb3;
$custom-light: #8280ca;
$custom-dark: #000000;

JSON

{
  "hex": "#424fb3",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 233.097,
    "s": 46.122,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47459,
    "c": 0.1579,
    "h": 273.2
  },
  "luminance": 0.10005
}

Semantic roles & 50–950 ramp

primary

#424FB3

secondary

#C4BE8C

accent

#C752D6

background

#F8F7FC

surface

#F0EEF8

border

#CBC9D1

text

#0C0A13

muted

#7D7C82

Preview Lab

Preview with #424FB3

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

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