#424BC9#424BC9

#424BC9 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.5% C 0.192 H 273.6°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#424BC9
RGB	rgb(66, 75, 201)
HSL	hsl(236, 56%, 52%)
HSV	hsv(236, 67%, 79%)
CMYK	cmyk(67.2%, 62.7%, 0%, 21.2%)
CIE-LAB	lab(38.56, 36.82, -66.60)
CIE-LCH	lch(38.56, 76.10, 298.94°)
OKLab	oklab(48.52% 0.0121 -0.1921)
OKLCH	oklch(48.52% 0.192 273.6)
XYZ	xyz(15.3019, 10.4061, 56.4492)
Luminance	0.1041 (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

#424BC9 #C9C042

analogous

#428FC9 #424BC9 #7D42C9

triadic

#424BC9 #C9424B #4BC942

tetradic

#424BC9 #C9428F #C9C042 #42C97D

square

#424BC9 #C9428F #C9C042 #42C97D

split-complementary

#424BC9 #C97D42 #8FC942

monochromatic

#202570 #2E35A0 #424BC9 #7278D7 #A1A6E4

Accessibility & contrast

On white

6.82

#424BC9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#424BC9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424BC9

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BC9	#FFFFFF	#000000	##FFFFFF
##424BC9	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061CD

Deuteranopia (green-blind)

#0055C7

Tritanopia (blue-blind)

#006B83

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #424bc9;
/* rgb */ color: rgb(66, 75, 201);
/* oklch */ color: oklch(48.5% 0.192 273.6);

Tailwind

colors: {
  custom: {
    50: '#877dda',
    500: '#424bc9',
    950: '#000000',
  },
}

SCSS

$custom: #424bc9;
$custom-light: #877dda;
$custom-dark: #000000;

JSON

{
  "hex": "#424bc9",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 201
  },
  "hsl": {
    "h": 236,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.4852,
    "c": 0.19249,
    "h": 273.6
  },
  "luminance": 0.10407
}

Semantic roles & 50–950 ramp

primary

#424BC9

secondary

#D1CD96

accent

#D549DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0D0915

muted

#7D7B83

Preview Lab

Preview with #424BC9

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

Preview Lab → · Contrast checker → · Palette generator →