#423699#423699

#423699 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.8% C 0.155 H 282.6°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#423699
RGB	rgb(66, 54, 153)
HSL	hsl(247, 48%, 41%)
HSV	hsv(247, 65%, 60%)
CMYK	cmyk(56.9%, 64.7%, 0%, 40%)
CIE-LAB	lab(29.65, 33.74, -52.60)
CIE-LCH	lch(29.65, 62.49, 302.67°)
OKLab	oklab(40.77% 0.0337 -0.1511)
OKLCH	oklch(40.77% 0.155 282.6)
XYZ	xyz(9.3139, 6.0959, 30.8167)
Luminance	0.0610 (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

#423699 #8D9936

analogous

#365B99 #423699 #733699

triadic

#423699 #994236 #369942

tetradic

#423699 #99365B #8D9936 #369973

square

#423699 #99365B #8D9936 #369973

split-complementary

#423699 #997336 #5B9936

monochromatic

#1B163F #2E266C #423699 #5A4CC0 #847AD0

Accessibility & contrast

On white

9.46

#423699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#423699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423699

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423699	#FFFFFF	#000000	##FFFFFF
##423699	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499C

Deuteranopia (green-blind)

#004297

Tritanopia (blue-blind)

#174E62

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #423699;
/* rgb */ color: rgb(66, 54, 153);
/* oklch */ color: oklch(40.8% 0.155 282.6);

Tailwind

colors: {
  custom: {
    50: '#7f6eb8',
    500: '#423699',
    950: '#000000',
  },
}

SCSS

$custom: #423699;
$custom-light: #7f6eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#423699",
  "rgb": {
    "r": 66,
    "g": 54,
    "b": 153
  },
  "hsl": {
    "h": 247.273,
    "s": 47.826,
    "l": 40.588
  },
  "oklch": {
    "l": 0.40773,
    "c": 0.15485,
    "h": 282.6
  },
  "luminance": 0.06096
}

Semantic roles & 50–950 ramp

primary

#423699

secondary

#B0B972

accent

#D750C7

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #423699

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

Preview Lab → · Contrast checker → · Palette generator →