#423CC0#423CC0

#423CC0 is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.198 H 277.0°. Best body text is #FFFFFF at 7.96:1 contrast (WCAG AA passes).

Color values

HEX	#423CC0
RGB	rgb(66, 60, 192)
HSL	hsl(243, 52%, 49%)
HSV	hsv(243, 69%, 75%)
CMYK	cmyk(65.6%, 68.7%, 0%, 24.7%)
CIE-LAB	lab(34.38, 42.89, -68.18)
CIE-LCH	lch(34.38, 80.55, 302.17°)
OKLab	oklab(45.24% 0.024 -0.1968)
OKLCH	oklch(45.24% 0.198 277)
XYZ	xyz(13.3740, 8.1946, 50.7359)
Luminance	0.0820 (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

#423CC0 #BAC03C

analogous

#3C78C0 #423CC0 #843CC0

triadic

#423CC0 #C0423C #3CC042

tetradic

#423CC0 #C03C78 #BAC03C #3CC084

square

#423CC0 #C03C78 #BAC03C #3CC084

split-complementary

#423CC0 #C0843C #78C03C

monochromatic

#221F63 #322D91 #423CC0 #6E69D0 #9B98DF

Accessibility & contrast

On white

7.96

#423CC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#423CC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CC0

7.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CC0	#FFFFFF	#000000	##FFFFFF
##423CC0	1.00	7.96	2.64	7.96
#FFFFFF	7.96	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C4

Deuteranopia (green-blind)

#004BBE

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423cc0;
/* rgb */ color: rgb(66, 60, 192);
/* oklch */ color: oklch(45.2% 0.198 277.0);

Tailwind

colors: {
  custom: {
    50: '#8673d4',
    500: '#423cc0',
    950: '#000000',
  },
}

SCSS

$custom: #423cc0;
$custom-light: #8673d4;
$custom-dark: #000000;

JSON

{
  "hex": "#423cc0",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 192
  },
  "hsl": {
    "h": 242.727,
    "s": 52.381,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45244,
    "c": 0.19827,
    "h": 277
  },
  "luminance": 0.08196
}

Semantic roles & 50–950 ramp

primary

#423CC0

secondary

#C8CA8D

accent

#DC4CD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #423CC0

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

Preview Lab → · Contrast checker → · Palette generator →