#423AC0#423AC0

#423AC0 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.9% C 0.200 H 277.3°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#423AC0
RGB	rgb(66, 58, 192)
HSL	hsl(244, 54%, 49%)
HSV	hsv(244, 70%, 75%)
CMYK	cmyk(65.6%, 69.8%, 0%, 24.7%)
CIE-LAB	lab(33.96, 44.05, -68.88)
CIE-LCH	lch(33.96, 81.76, 302.60°)
OKLab	oklab(44.94% 0.0254 -0.1988)
OKLCH	oklch(44.94% 0.2 277.3)
XYZ	xyz(13.2712, 7.9890, 50.7016)
Luminance	0.0799 (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

#423AC0 #B8C03A

analogous

#3A75C0 #423AC0 #853AC0

triadic

#423AC0 #C0423A #3AC042

tetradic

#423AC0 #C03A75 #B8C03A #3AC085

square

#423AC0 #C03A75 #B8C03A #3AC085

split-complementary

#423AC0 #C0853A #75C03A

monochromatic

#221E62 #322C91 #423AC0 #6D66D1 #9A95DF

Accessibility & contrast

On white

8.08

#423AC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#423AC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AC0

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AC0	#FFFFFF	#000000	##FFFFFF
##423AC0	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C4

Deuteranopia (green-blind)

#004ABD

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #423ac0;
/* rgb */ color: rgb(66, 58, 192);
/* oklch */ color: oklch(44.9% 0.200 277.3);

Tailwind

colors: {
  custom: {
    50: '#8671d4',
    500: '#423ac0',
    950: '#000000',
  },
}

SCSS

$custom: #423ac0;
$custom-light: #8671d4;
$custom-dark: #000000;

JSON

{
  "hex": "#423ac0",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 192
  },
  "hsl": {
    "h": 243.582,
    "s": 53.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.44938,
    "c": 0.20046,
    "h": 277.3
  },
  "luminance": 0.0799
}

Semantic roles & 50–950 ramp

primary

#423AC0

secondary

#C7CA8B

accent

#DD4BD4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0814

muted

#7D7B83

Preview Lab

Preview with #423AC0

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

Preview Lab → · Contrast checker → · Palette generator →