#423ACF#423ACF

#423ACF is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.4% C 0.219 H 276.0°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#423ACF
RGB	rgb(66, 58, 207)
HSL	hsl(243, 61%, 52%)
HSV	hsv(243, 72%, 81%)
CMYK	cmyk(68.1%, 72%, 0%, 18.8%)
CIE-LAB	lab(35.38, 48.86, -75.30)
CIE-LCH	lch(35.38, 89.77, 302.98°)
OKLab	oklab(46.38% 0.0229 -0.2176)
OKLCH	oklch(46.38% 0.219 276)
XYZ	xyz(15.0186, 8.6880, 59.9049)
Luminance	0.0869 (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

#423ACF #C7CF3A

analogous

#3A7DCF #423ACF #8C3ACF

triadic

#423ACF #CF423A #3ACF42

tetradic

#423ACF #CF3A7D #C7CF3A #3ACF8C

square

#423ACF #CF3A7D #C7CF3A #3ACF8C

split-complementary

#423ACF #CF8C3A #7DCF3A

monochromatic

#211C73 #2F28A4 #423ACF #716BDB #A09CE7

Accessibility & contrast

On white

7.67

#423ACF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#423ACF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423ACF

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423ACF	#FFFFFF	#000000	##FFFFFF
##423ACF	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AD3

Deuteranopia (green-blind)

#004DCC

Tritanopia (blue-blind)

#006481

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423acf;
/* rgb */ color: rgb(66, 58, 207);
/* oklch */ color: oklch(46.4% 0.219 276.0);

Tailwind

colors: {
  custom: {
    50: '#8972df',
    500: '#423acf',
    950: '#000000',
  },
}

SCSS

$custom: #423acf;
$custom-light: #8972df;
$custom-dark: #000000;

JSON

{
  "hex": "#423acf",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 207
  },
  "hsl": {
    "h": 243.221,
    "s": 60.816,
    "l": 51.961
  },
  "oklch": {
    "l": 0.46379,
    "c": 0.21881,
    "h": 276
  },
  "luminance": 0.08689
}

Semantic roles & 50–950 ramp

primary

#423ACF

secondary

#D0D392

accent

#E444DB

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423ACF

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

Preview Lab → · Contrast checker → · Palette generator →