#423EBA#423EBA

#423EBA is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.0% C 0.188 H 277.1°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).

Color values

HEX	#423EBA
RGB	rgb(66, 62, 186)
HSL	hsl(242, 50%, 49%)
HSV	hsv(242, 67%, 73%)
CMYK	cmyk(64.5%, 66.7%, 0%, 27.1%)
CIE-LAB	lab(34.29, 39.72, -64.81)
CIE-LCH	lch(34.29, 76.02, 301.50°)
OKLab	oklab(45.01% 0.0233 -0.1869)
OKLCH	oklch(45.01% 0.188 277.1)
XYZ	xyz(12.8294, 8.1476, 47.3414)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.12

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423EBA #B6BA3E

analogous

#3E78BA #423EBA #803EBA

triadic

#423EBA #BA423E #3EBA42

tetradic

#423EBA #BA3E78 #B6BA3E #3EBA80

square

#423EBA #BA3E78 #B6BA3E #3EBA80

split-complementary

#423EBA #BA803E #78BA3E

monochromatic

#211F5E #322F8C #423EBA #6C68CD #9996DC

Accessibility & contrast

On white

7.99

#423EBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#423EBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EBA

7.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EBA	#FFFFFF	#000000	##FFFFFF
##423EBA	1.00	7.99	2.63	7.99
#FFFFFF	7.99	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BE

Deuteranopia (green-blind)

#004BB8

Tritanopia (blue-blind)

#005E76

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423eba;
/* rgb */ color: rgb(66, 62, 186);
/* oklch */ color: oklch(45.0% 0.188 277.1);

Tailwind

colors: {
  custom: {
    50: '#8574d0',
    500: '#423eba',
    950: '#000000',
  },
}

SCSS

$custom: #423eba;
$custom-light: #8574d0;
$custom-dark: #000000;

JSON

{
  "hex": "#423eba",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 186
  },
  "hsl": {
    "h": 241.935,
    "s": 50,
    "l": 48.627
  },
  "oklch": {
    "l": 0.4501,
    "c": 0.18839,
    "h": 277.1
  },
  "luminance": 0.08149
}

Semantic roles & 50–950 ramp

primary

#423EBA

secondary

#C6C88C

accent

#DA4ED5

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #423EBA

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

Preview Lab → · Contrast checker → · Palette generator →