#424EC1#424EC1

#424EC1 is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.4% C 0.178 H 273.2°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#424EC1
RGB	rgb(66, 78, 193)
HSL	hsl(234, 51%, 51%)
HSV	hsv(234, 66%, 76%)
CMYK	cmyk(65.8%, 59.6%, 0%, 24.3%)
CIE-LAB	lab(38.65, 32.18, -61.80)
CIE-LCH	lch(38.65, 69.68, 297.51°)
OKLab	oklab(48.39% 0.01 -0.178)
OKLCH	oklch(48.39% 0.178 273.2)
XYZ	xyz(14.5936, 10.4560, 51.6909)
Luminance	0.1046 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EC1 #C1B542

analogous

#428DC1 #424EC1 #7542C1

triadic

#424EC1 #C1424E #4EC142

tetradic

#424EC1 #C1428D #C1B542 #42C175

square

#424EC1 #C1428D #C1B542 #42C175

split-complementary

#424EC1 #C17542 #8DC142

monochromatic

#222867 #313A95 #424EC1 #7079D0 #9EA4DF

Accessibility & contrast

On white

6.79

#424EC1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#424EC1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424EC1

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EC1	#FFFFFF	#000000	##FFFFFF
##424EC1	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C5

Deuteranopia (green-blind)

#0055BF

Tritanopia (blue-blind)

#006A80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #424ec1;
/* rgb */ color: rgb(66, 78, 193);
/* oklch */ color: oklch(48.4% 0.178 273.2);

Tailwind

colors: {
  custom: {
    50: '#857fd5',
    500: '#424ec1',
    950: '#000000',
  },
}

SCSS

$custom: #424ec1;
$custom-light: #857fd5;
$custom-dark: #000000;

JSON

{
  "hex": "#424ec1",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 193
  },
  "hsl": {
    "h": 234.331,
    "s": 50.598,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48385,
    "c": 0.17828,
    "h": 273.2
  },
  "luminance": 0.10457
}

Semantic roles & 50–950 ramp

primary

#424EC1

secondary

#CCC693

accent

#CD4EDA

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #424EC1

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

Preview Lab → · Contrast checker → · Palette generator →