#424DCB#424DCB

#424DCB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 49.0% C 0.193 H 273.1°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#424DCB
RGB	rgb(66, 77, 203)
HSL	hsl(235, 57%, 53%)
HSV	hsv(235, 67%, 80%)
CMYK	cmyk(67.5%, 62.1%, 0%, 20.4%)
CIE-LAB	lab(39.20, 36.27, -66.71)
CIE-LCH	lch(39.20, 75.93, 298.53°)
OKLab	oklab(49.04% 0.0105 -0.1924)
OKLCH	oklch(49.04% 0.193 273.1)
XYZ	xyz(15.6765, 10.7764, 57.7422)
Luminance	0.1078 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.56

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424DCB #CBC042

analogous

#4292CB #424DCB #7B42CB

triadic

#424DCB #CB424D #4DCB42

tetradic

#424DCB #CB4292 #CBC042 #42CB7B

square

#424DCB #CB4292 #CBC042 #42CB7B

split-complementary

#424DCB #CB7B42 #92CB42

monochromatic

#202673 #2D36A3 #424DCB #727AD8 #A2A7E5

Accessibility & contrast

On white

6.65

#424DCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#424DCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424DCB

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424DCB	#FFFFFF	#000000	##FFFFFF
##424DCB	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CF

Deuteranopia (green-blind)

#0056C9

Tritanopia (blue-blind)

#006D85

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #424dcb;
/* rgb */ color: rgb(66, 77, 203);
/* oklch */ color: oklch(49.0% 0.193 273.1);

Tailwind

colors: {
  custom: {
    50: '#877fdc',
    500: '#424dcb',
    950: '#000000',
  },
}

SCSS

$custom: #424dcb;
$custom-light: #877fdc;
$custom-dark: #000000;

JSON

{
  "hex": "#424dcb",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 203
  },
  "hsl": {
    "h": 235.182,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.49041,
    "c": 0.19272,
    "h": 273.1
  },
  "luminance": 0.10778
}

Semantic roles & 50–950 ramp

primary

#424DCB

secondary

#D2CD97

accent

#D448E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424DCB

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

Preview Lab → · Contrast checker → · Palette generator →