#423DC0#423DC0

#423DC0 is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.4% C 0.197 H 276.8°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#423DC0
RGB	rgb(66, 61, 192)
HSL	hsl(242, 52%, 50%)
HSV	hsv(242, 68%, 75%)
CMYK	cmyk(65.6%, 68.2%, 0%, 24.7%)
CIE-LAB	lab(34.60, 42.30, -67.83)
CIE-LCH	lch(34.60, 79.94, 301.95°)
OKLab	oklab(45.4% 0.0233 -0.1958)
OKLCH	oklch(45.4% 0.197 276.8)
XYZ	xyz(13.4268, 8.3004, 50.7535)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.54

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423DC0 #BBC03D

analogous

#3D7AC0 #423DC0 #843DC0

triadic

#423DC0 #C0423D #3DC042

tetradic

#423DC0 #C03D7A #BBC03D #3DC084

square

#423DC0 #C03D7A #BBC03D #3DC084

split-complementary

#423DC0 #C0843D #7AC03D

monochromatic

#221F63 #322E92 #423DC0 #6E6AD0 #9C99DF

Accessibility & contrast

On white

7.89

#423DC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#423DC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DC0

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DC0	#FFFFFF	#000000	##FFFFFF
##423DC0	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C4

Deuteranopia (green-blind)

#004CBE

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423dc0;
/* rgb */ color: rgb(66, 61, 192);
/* oklch */ color: oklch(45.4% 0.197 276.8);

Tailwind

colors: {
  custom: {
    50: '#8673d4',
    500: '#423dc0',
    950: '#000000',
  },
}

SCSS

$custom: #423dc0;
$custom-light: #8673d4;
$custom-dark: #000000;

JSON

{
  "hex": "#423dc0",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 192
  },
  "hsl": {
    "h": 242.29,
    "s": 51.779,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45399,
    "c": 0.19715,
    "h": 276.8
  },
  "luminance": 0.08302
}

Semantic roles & 50–950 ramp

primary

#423DC0

secondary

#C8CA8E

accent

#DB4DD6

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #423DC0

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

Preview Lab → · Contrast checker → · Palette generator →