#424FC1#424FC1

#424FC1 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.6% C 0.177 H 273.0°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#424FC1
RGB	rgb(66, 79, 193)
HSL	hsl(234, 51%, 51%)
HSV	hsv(234, 66%, 76%)
CMYK	cmyk(65.8%, 59.1%, 0%, 24.3%)
CIE-LAB	lab(38.90, 31.55, -61.39)
CIE-LCH	lch(38.90, 69.03, 297.20°)
OKLab	oklab(48.57% 0.0091 -0.1768)
OKLCH	oklch(48.57% 0.177 273)
XYZ	xyz(14.6652, 10.5992, 51.7147)
Luminance	0.1060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424FC1 #C1B442

analogous

#428EC1 #424FC1 #7442C1

triadic

#424FC1 #C1424F #4FC142

tetradic

#424FC1 #C1428E #C1B442 #42C174

square

#424FC1 #C1428E #C1B442 #42C174

split-complementary

#424FC1 #C17442 #8EC142

monochromatic

#222967 #313B95 #424FC1 #707AD0 #9EA5DF

Accessibility & contrast

On white

6.73

#424FC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#424FC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424FC1

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424FC1	#FFFFFF	#000000	##FFFFFF
##424FC1	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C5

Deuteranopia (green-blind)

#0056BF

Tritanopia (blue-blind)

#006B80

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #424fc1;
/* rgb */ color: rgb(66, 79, 193);
/* oklch */ color: oklch(48.6% 0.177 273.0);

Tailwind

colors: {
  custom: {
    50: '#8580d5',
    500: '#424fc1',
    950: '#000000',
  },
}

SCSS

$custom: #424fc1;
$custom-light: #8580d5;
$custom-dark: #000000;

JSON

{
  "hex": "#424fc1",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 193
  },
  "hsl": {
    "h": 233.858,
    "s": 50.598,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48569,
    "c": 0.17704,
    "h": 273
  },
  "luminance": 0.106
}

Semantic roles & 50–950 ramp

primary

#424FC1

secondary

#CCC693

accent

#CC4EDA

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #424FC1

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

Preview Lab → · Contrast checker → · Palette generator →