#423CC5#423CC5

#423CC5 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.7% C 0.205 H 276.5°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#423CC5
RGB	rgb(66, 60, 197)
HSL	hsl(243, 54%, 50%)
HSV	hsv(243, 70%, 77%)
CMYK	cmyk(66.5%, 69.5%, 0%, 22.7%)
CIE-LAB	lab(34.84, 44.51, -70.36)
CIE-LCH	lch(34.84, 83.26, 302.32°)
OKLab	oklab(45.71% 0.0233 -0.2032)
OKLCH	oklch(45.71% 0.205 276.5)
XYZ	xyz(13.9374, 8.4200, 53.7032)
Luminance	0.0842 (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

#423CC5 #BFC53C

analogous

#3C7AC5 #423CC5 #873CC5

triadic

#423CC5 #C5423C #3CC542

tetradic

#423CC5 #C53C7A #BFC53C #3CC587

square

#423CC5 #C53C7A #BFC53C #3CC587

split-complementary

#423CC5 #C5873C #7AC53C

monochromatic

#221F68 #322D97 #423CC5 #706BD3 #9D9AE1

Accessibility & contrast

On white

7.82

#423CC5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#423CC5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CC5

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CC5	#FFFFFF	#000000	##FFFFFF
##423CC5	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C9

Deuteranopia (green-blind)

#004CC2

Tritanopia (blue-blind)

#00617C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #423cc5;
/* rgb */ color: rgb(66, 60, 197);
/* oklch */ color: oklch(45.7% 0.205 276.5);

Tailwind

colors: {
  custom: {
    50: '#8773d8',
    500: '#423cc5',
    950: '#000000',
  },
}

SCSS

$custom: #423cc5;
$custom-light: #8773d8;
$custom-dark: #000000;

JSON

{
  "hex": "#423cc5",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 197
  },
  "hsl": {
    "h": 242.628,
    "s": 54.15,
    "l": 50.392
  },
  "oklch": {
    "l": 0.45712,
    "c": 0.20451,
    "h": 276.5
  },
  "luminance": 0.08421
}

Semantic roles & 50–950 ramp

primary

#423CC5

secondary

#CACD90

accent

#DE4AD7

background

#F9F7FD

surface

#F1EDFA

border

#CBC8D3

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423CC5

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

Preview Lab → · Contrast checker → · Palette generator →