#424BC1#424BC1

#424BC1 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.8% C 0.182 H 273.9°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#424BC1
RGB	rgb(66, 75, 193)
HSL	hsl(236, 51%, 51%)
HSV	hsv(236, 66%, 76%)
CMYK	cmyk(65.8%, 61.1%, 0%, 24.3%)
CIE-LAB	lab(37.91, 34.08, -63.00)
CIE-LCH	lch(37.91, 71.62, 298.41°)
OKLab	oklab(47.84% 0.0124 -0.1815)
OKLCH	oklch(47.84% 0.182 273.9)
XYZ	xyz(14.3853, 10.0394, 51.6214)
Luminance	0.1004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424BC1 #C1B842

analogous

#428AC1 #424BC1 #7842C1

triadic

#424BC1 #C1424B #4BC142

tetradic

#424BC1 #C1428A #C1B842 #42C178

square

#424BC1 #C1428A #C1B842 #42C178

split-complementary

#424BC1 #C17842 #8AC142

monochromatic

#222767 #313895 #424BC1 #7077D0 #9EA3DF

Accessibility & contrast

On white

6.98

#424BC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#424BC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424BC1

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BC1	#FFFFFF	#000000	##FFFFFF
##424BC1	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC5

Deuteranopia (green-blind)

#0054BF

Tritanopia (blue-blind)

#00697F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #424bc1;
/* rgb */ color: rgb(66, 75, 193);
/* oklch */ color: oklch(47.8% 0.182 273.9);

Tailwind

colors: {
  custom: {
    50: '#857dd5',
    500: '#424bc1',
    950: '#000000',
  },
}

SCSS

$custom: #424bc1;
$custom-light: #857dd5;
$custom-dark: #000000;

JSON

{
  "hex": "#424bc1",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 193
  },
  "hsl": {
    "h": 235.748,
    "s": 50.598,
    "l": 50.784
  },
  "oklch": {
    "l": 0.47842,
    "c": 0.18197,
    "h": 273.9
  },
  "luminance": 0.10041
}

Semantic roles & 50–950 ramp

primary

#424BC1

secondary

#CCC893

accent

#D04EDA

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #424BC1

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

Preview Lab → · Contrast checker → · Palette generator →