#423FC5#423FC5

#423FC5 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.2% C 0.201 H 276.1°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#423FC5
RGB	rgb(66, 63, 197)
HSL	hsl(241, 54%, 51%)
HSV	hsv(241, 68%, 77%)
CMYK	cmyk(66.5%, 68%, 0%, 22.7%)
CIE-LAB	lab(35.49, 42.76, -69.30)
CIE-LCH	lch(35.49, 81.43, 301.67°)
OKLab	oklab(46.18% 0.0212 -0.2001)
OKLCH	oklch(46.18% 0.201 276.1)
XYZ	xyz(14.0990, 8.7432, 53.7571)
Luminance	0.0874 (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

#423FC5 #C2C53F

analogous

#3F7FC5 #423FC5 #853FC5

triadic

#423FC5 #C5423F #3FC542

tetradic

#423FC5 #C53F7F #C2C53F #3FC585

square

#423FC5 #C53F7F #C2C53F #3FC585

split-complementary

#423FC5 #C5853F #7FC53F

monochromatic

#22206A #312E99 #423FC5 #706ED3 #9F9DE1

Accessibility & contrast

On white

7.64

#423FC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#423FC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FC5

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FC5	#FFFFFF	#000000	##FFFFFF
##423FC5	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C9

Deuteranopia (green-blind)

#004DC2

Tritanopia (blue-blind)

#00637D

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423fc5;
/* rgb */ color: rgb(66, 63, 197);
/* oklch */ color: oklch(46.2% 0.201 276.1);

Tailwind

colors: {
  custom: {
    50: '#8775d8',
    500: '#423fc5',
    950: '#000000',
  },
}

SCSS

$custom: #423fc5;
$custom-light: #8775d8;
$custom-dark: #000000;

JSON

{
  "hex": "#423fc5",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 197
  },
  "hsl": {
    "h": 241.343,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.46175,
    "c": 0.20121,
    "h": 276.1
  },
  "luminance": 0.08744
}

Semantic roles & 50–950 ramp

primary

#423FC5

secondary

#CCCE92

accent

#DD4BDA

background

#F9F7FD

surface

#F1EDFA

border

#CBC8D3

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423FC5

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

Preview Lab → · Contrast checker → · Palette generator →