#423BD3#423BD3

#423BD3 is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.9% C 0.223 H 275.6°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#423BD3
RGB	rgb(66, 59, 211)
HSL	hsl(243, 63%, 53%)
HSV	hsv(243, 72%, 83%)
CMYK	cmyk(68.7%, 72%, 0%, 17.3%)
CIE-LAB	lab(35.96, 49.58, -76.65)
CIE-LCH	lch(35.96, 91.29, 302.90°)
OKLab	oklab(46.91% 0.0216 -0.2216)
OKLCH	oklch(46.91% 0.223 275.6)
XYZ	xyz(15.5647, 8.9879, 62.5300)
Luminance	0.0899 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.46

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423BD3 #CCD33B

analogous

#3B80D3 #423BD3 #8E3BD3

triadic

#423BD3 #D3423B #3BD342

tetradic

#423BD3 #D33B80 #CCD33B #3BD38E

square

#423BD3 #D33B80 #CCD33B #3BD38E

split-complementary

#423BD3 #D38E3B #80D33B

monochromatic

#1F1B79 #2C26AB #423BD3 #726DDE #A29FE9

Accessibility & contrast

On white

7.51

#423BD3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#423BD3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BD3

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BD3	#FFFFFF	#000000	##FFFFFF
##423BD3	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD7

Deuteranopia (green-blind)

#004ED0

Tritanopia (blue-blind)

#006683

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #423bd3;
/* rgb */ color: rgb(66, 59, 211);
/* oklch */ color: oklch(46.9% 0.223 275.6);

Tailwind

colors: {
  custom: {
    50: '#8a73e2',
    500: '#423bd3',
    950: '#000000',
  },
}

SCSS

$custom: #423bd3;
$custom-light: #8a73e2;
$custom-dark: #000000;

JSON

{
  "hex": "#423bd3",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 211
  },
  "hsl": {
    "h": 242.763,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.46912,
    "c": 0.22261,
    "h": 275.6
  },
  "luminance": 0.08989
}

Semantic roles & 50–950 ramp

primary

#423BD3

secondary

#D3D694

accent

#E641DF

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #423BD3

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

Preview Lab → · Contrast checker → · Palette generator →