#423EBC#423EBC

#423EBC is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.191 H 276.9°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#423EBC
RGB	rgb(66, 62, 188)
HSL	hsl(242, 50%, 49%)
HSV	hsv(242, 67%, 74%)
CMYK	cmyk(64.9%, 67%, 0%, 26.3%)
CIE-LAB	lab(34.46, 40.39, -65.70)
CIE-LCH	lch(34.46, 77.12, 301.58°)
OKLab	oklab(45.19% 0.0231 -0.1895)
OKLCH	oklch(45.19% 0.191 276.9)
XYZ	xyz(13.0435, 8.2332, 48.4690)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.21

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423EBC #B8BC3E

analogous

#3E79BC #423EBC #813EBC

triadic

#423EBC #BC423E #3EBC42

tetradic

#423EBC #BC3E79 #B8BC3E #3EBC81

square

#423EBC #BC3E79 #B8BC3E #3EBC81

split-complementary

#423EBC #BC813E #79BC3E

monochromatic

#222060 #322F8E #423EBC #6D6ACE #9A98DD

Accessibility & contrast

On white

7.93

#423EBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#423EBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EBC

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EBC	#FFFFFF	#000000	##FFFFFF
##423EBC	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#004CBA

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423ebc;
/* rgb */ color: rgb(66, 62, 188);
/* oklch */ color: oklch(45.2% 0.191 276.9);

Tailwind

colors: {
  custom: {
    50: '#8574d1',
    500: '#423ebc',
    950: '#000000',
  },
}

SCSS

$custom: #423ebc;
$custom-light: #8574d1;
$custom-dark: #000000;

JSON

{
  "hex": "#423ebc",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 188
  },
  "hsl": {
    "h": 241.905,
    "s": 50.4,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45191,
    "c": 0.19095,
    "h": 276.9
  },
  "luminance": 0.08234
}

Semantic roles & 50–950 ramp

primary

#423EBC

secondary

#C7C98D

accent

#DA4ED5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423EBC

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

Preview Lab → · Contrast checker → · Palette generator →