#423CC8#423CC8

#423CC8 is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.0% C 0.208 H 276.3°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#423CC8
RGB	rgb(66, 60, 200)
HSL	hsl(243, 56%, 51%)
HSV	hsv(243, 70%, 78%)
CMYK	cmyk(67%, 70%, 0%, 21.6%)
CIE-LAB	lab(35.12, 45.49, -71.65)
CIE-LCH	lch(35.12, 84.87, 302.41°)
OKLab	oklab(46% 0.0228 -0.207)
OKLCH	oklch(46% 0.208 276.3)
XYZ	xyz(14.2845, 8.5588, 55.5316)
Luminance	0.0856 (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

#423CC8 #C2C83C

analogous

#3C7CC8 #423CC8 #883CC8

triadic

#423CC8 #C8423C #3CC842

tetradic

#423CC8 #C83C7C #C2C83C #3CC888

square

#423CC8 #C83C7C #C2C83C #3CC888

split-complementary

#423CC8 #C8883C #7CC83C

monochromatic

#221E6B #312C9B #423CC8 #706CD5 #9F9BE3

Accessibility & contrast

On white

7.74

#423CC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#423CC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CC8

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CC8	#FFFFFF	#000000	##FFFFFF
##423CC8	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CC

Deuteranopia (green-blind)

#004CC5

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423cc8;
/* rgb */ color: rgb(66, 60, 200);
/* oklch */ color: oklch(46.0% 0.208 276.3);

Tailwind

colors: {
  custom: {
    50: '#8873da',
    500: '#423cc8',
    950: '#000000',
  },
}

SCSS

$custom: #423cc8;
$custom-light: #8873da;
$custom-dark: #000000;

JSON

{
  "hex": "#423cc8",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 200
  },
  "hsl": {
    "h": 242.571,
    "s": 56,
    "l": 50.98
  },
  "oklch": {
    "l": 0.45996,
    "c": 0.20821,
    "h": 276.3
  },
  "luminance": 0.0856
}

Semantic roles & 50–950 ramp

primary

#423CC8

secondary

#CCCF91

accent

#DF49D9

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423CC8

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

Preview Lab → · Contrast checker → · Palette generator →