#423AC4#423AC4

#423AC4 is a mid, highly saturated blue. Relative luminance 0.082; OKLCH L 45.3% C 0.205 H 276.9°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#423AC4
RGB	rgb(66, 58, 196)
HSL	hsl(243, 54%, 50%)
HSV	hsv(243, 70%, 77%)
CMYK	cmyk(66.3%, 70.4%, 0%, 23.1%)
CIE-LAB	lab(34.33, 45.34, -70.61)
CIE-LCH	lch(34.33, 83.92, 302.70°)
OKLab	oklab(45.32% 0.0248 -0.2039)
OKLCH	oklch(45.32% 0.205 276.9)
XYZ	xyz(13.7204, 8.1687, 53.0675)
Luminance	0.0817 (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

#423AC4 #BCC43A

analogous

#3A77C4 #423AC4 #873AC4

triadic

#423AC4 #C4423A #3AC442

tetradic

#423AC4 #C43A77 #BCC43A #3AC487

square

#423AC4 #C43A77 #BCC43A #3AC487

split-complementary

#423AC4 #C4873A #77C43A

monochromatic

#221E66 #322C95 #423AC4 #6F69D3 #9C98E0

Accessibility & contrast

On white

7.97

#423AC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#423AC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AC4

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AC4	#FFFFFF	#000000	##FFFFFF
##423AC4	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C8

Deuteranopia (green-blind)

#004BC1

Tritanopia (blue-blind)

#00607B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423ac4;
/* rgb */ color: rgb(66, 58, 196);
/* oklch */ color: oklch(45.3% 0.205 276.9);

Tailwind

colors: {
  custom: {
    50: '#8772d7',
    500: '#423ac4',
    950: '#000000',
  },
}

SCSS

$custom: #423ac4;
$custom-light: #8772d7;
$custom-dark: #000000;

JSON

{
  "hex": "#423ac4",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 196
  },
  "hsl": {
    "h": 243.478,
    "s": 54.331,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45318,
    "c": 0.20542,
    "h": 276.9
  },
  "luminance": 0.0817
}

Semantic roles & 50–950 ramp

primary

#423AC4

secondary

#C9CC8E

accent

#DE4AD5

background

#F9F6FD

surface

#F1ECFA

border

#CBC7D3

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423AC4

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

Preview Lab → · Contrast checker → · Palette generator →