#423DC8#423DC8

#423DC8 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.1% C 0.207 H 276.1°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#423DC8
RGB	rgb(66, 61, 200)
HSL	hsl(242, 56%, 51%)
HSV	hsv(242, 70%, 78%)
CMYK	cmyk(67%, 69.5%, 0%, 21.6%)
CIE-LAB	lab(35.33, 44.91, -71.31)
CIE-LCH	lch(35.33, 84.27, 302.20°)
OKLab	oklab(46.15% 0.0222 -0.2059)
OKLCH	oklch(46.15% 0.207 276.1)
XYZ	xyz(14.3374, 8.6646, 55.5492)
Luminance	0.0867 (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

#423DC8 #C3C83D

analogous

#3D7DC8 #423DC8 #873DC8

triadic

#423DC8 #C8423D #3DC842

tetradic

#423DC8 #C83D7D #C3C83D #3DC887

square

#423DC8 #C83D7D #C3C83D #3DC887

split-complementary

#423DC8 #C8873D #7DC83D

monochromatic

#211F6C #302C9C #423DC8 #706DD6 #9F9CE3

Accessibility & contrast

On white

7.68

#423DC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#423DC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DC8

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DC8	#FFFFFF	#000000	##FFFFFF
##423DC8	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CC

Deuteranopia (green-blind)

#004DC5

Tritanopia (blue-blind)

#00637E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423dc8;
/* rgb */ color: rgb(66, 61, 200);
/* oklch */ color: oklch(46.1% 0.207 276.1);

Tailwind

colors: {
  custom: {
    50: '#8874da',
    500: '#423dc8',
    950: '#000000',
  },
}

SCSS

$custom: #423dc8;
$custom-light: #8874da;
$custom-dark: #000000;

JSON

{
  "hex": "#423dc8",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 200
  },
  "hsl": {
    "h": 242.158,
    "s": 55.823,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46147,
    "c": 0.20714,
    "h": 276.1
  },
  "luminance": 0.08666
}

Semantic roles & 50–950 ramp

primary

#423DC8

secondary

#CDCF92

accent

#DF49DA

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423DC8

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

Preview Lab → · Contrast checker → · Palette generator →