#424EC9#424EC9

#424EC9 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 49.0% C 0.189 H 273.0°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#424EC9
RGB	rgb(66, 78, 201)
HSL	hsl(235, 56%, 52%)
HSV	hsv(235, 67%, 79%)
CMYK	cmyk(67.2%, 61.2%, 0%, 21.2%)
CIE-LAB	lab(39.28, 34.95, -65.42)
CIE-LCH	lch(39.28, 74.18, 298.11°)
OKLab	oklab(49.05% 0.0098 -0.1886)
OKLCH	oklch(49.05% 0.189 273)
XYZ	xyz(15.5102, 10.8226, 56.5186)
Luminance	0.1082 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.87

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424EC9 #C9BD42

analogous

#4291C9 #424EC9 #7A42C9

triadic

#424EC9 #C9424E #4EC942

tetradic

#424EC9 #C94291 #C9BD42 #42C97A

square

#424EC9 #C94291 #C9BD42 #42C97A

split-complementary

#424EC9 #C97A42 #91C942

monochromatic

#202770 #2E38A0 #424EC9 #727BD7 #A1A7E4

Accessibility & contrast

On white

6.64

#424EC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#424EC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424EC9

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424EC9	#FFFFFF	#000000	##FFFFFF
##424EC9	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CD

Deuteranopia (green-blind)

#0057C7

Tritanopia (blue-blind)

#006D84

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #424ec9;
/* rgb */ color: rgb(66, 78, 201);
/* oklch */ color: oklch(49.0% 0.189 273.0);

Tailwind

colors: {
  custom: {
    50: '#867fda',
    500: '#424ec9',
    950: '#000000',
  },
}

SCSS

$custom: #424ec9;
$custom-light: #867fda;
$custom-dark: #000000;

JSON

{
  "hex": "#424ec9",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 201
  },
  "hsl": {
    "h": 234.667,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.49049,
    "c": 0.18889,
    "h": 273
  },
  "luminance": 0.10824
}

Semantic roles & 50–950 ramp

primary

#424EC9

secondary

#D1CC96

accent

#D249DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0A15

muted

#7D7C83

Preview Lab

Preview with #424EC9

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

Preview Lab → · Contrast checker → · Palette generator →