#424EC3#424EC3

#424EC3 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.5% C 0.181 H 273.1°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#424EC3
RGB	rgb(66, 78, 195)
HSL	hsl(234, 52%, 51%)
HSV	hsv(234, 66%, 76%)
CMYK	cmyk(66.2%, 60%, 0%, 23.5%)
CIE-LAB	lab(38.80, 32.88, -62.71)
CIE-LCH	lch(38.80, 70.81, 297.67°)
OKLab	oklab(48.55% 0.0099 -0.1807)
OKLCH	oklch(48.55% 0.181 273.1)
XYZ	xyz(14.8182, 10.5458, 52.8738)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EC3 #C3B742

analogous

#428EC3 #424EC3 #7642C3

triadic

#424EC3 #C3424E #4EC342

tetradic

#424EC3 #C3428E #C3B742 #42C376

square

#424EC3 #C3428E #C3B742 #42C376

split-complementary

#424EC3 #C37642 #8EC342

monochromatic

#212869 #303A98 #424EC3 #707AD2 #9FA5E0

Accessibility & contrast

On white

6.75

#424EC3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#424EC3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424EC3

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EC3	#FFFFFF	#000000	##FFFFFF
##424EC3	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C7

Deuteranopia (green-blind)

#0056C1

Tritanopia (blue-blind)

#006B81

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #424ec3;
/* rgb */ color: rgb(66, 78, 195);
/* oklch */ color: oklch(48.5% 0.181 273.1);

Tailwind

colors: {
  custom: {
    50: '#857fd6',
    500: '#424ec3',
    950: '#000000',
  },
}

SCSS

$custom: #424ec3;
$custom-light: #857fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#424ec3",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 195
  },
  "hsl": {
    "h": 234.419,
    "s": 51.807,
    "l": 51.176
  },
  "oklch": {
    "l": 0.4855,
    "c": 0.18095,
    "h": 273.1
  },
  "luminance": 0.10547
}

Semantic roles & 50–950 ramp

primary

#424EC3

secondary

#CDC894

accent

#CE4DDB

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #424EC3

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

Preview Lab → · Contrast checker → · Palette generator →