#423BC0#423BC0

#423BC0 is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.1% C 0.199 H 277.1°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#423BC0
RGB	rgb(66, 59, 192)
HSL	hsl(243, 53%, 49%)
HSV	hsv(243, 69%, 75%)
CMYK	cmyk(65.6%, 69.3%, 0%, 24.7%)
CIE-LAB	lab(34.17, 43.47, -68.53)
CIE-LCH	lch(34.17, 81.16, 302.39°)
OKLab	oklab(45.09% 0.0247 -0.1978)
OKLCH	oklch(45.09% 0.199 277.1)
XYZ	xyz(13.3221, 8.0908, 50.7186)
Luminance	0.0809 (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

#423BC0 #B9C03B

analogous

#3B77C0 #423BC0 #853BC0

triadic

#423BC0 #C0423B #3BC042

tetradic

#423BC0 #C03B77 #B9C03B #3BC085

square

#423BC0 #C03B77 #B9C03B #3BC085

split-complementary

#423BC0 #C0853B #77C03B

monochromatic

#221E62 #322D91 #423BC0 #6D68D1 #9A97DF

Accessibility & contrast

On white

8.02

#423BC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#423BC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BC0

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BC0	#FFFFFF	#000000	##FFFFFF
##423BC0	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C4

Deuteranopia (green-blind)

#004BBE

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #423bc0;
/* rgb */ color: rgb(66, 59, 192);
/* oklch */ color: oklch(45.1% 0.199 277.1);

Tailwind

colors: {
  custom: {
    50: '#8672d4',
    500: '#423bc0',
    950: '#000000',
  },
}

SCSS

$custom: #423bc0;
$custom-light: #8672d4;
$custom-dark: #000000;

JSON

{
  "hex": "#423bc0",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 192
  },
  "hsl": {
    "h": 243.158,
    "s": 52.988,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4509,
    "c": 0.19938,
    "h": 277.1
  },
  "luminance": 0.08092
}

Semantic roles & 50–950 ramp

primary

#423BC0

secondary

#C7CA8C

accent

#DC4BD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #423BC0

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

Preview Lab → · Contrast checker → · Palette generator →