#423FC4#423FC4

#423FC4 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 46.1% C 0.200 H 276.1°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#423FC4
RGB	rgb(66, 63, 196)
HSL	hsl(241, 53%, 51%)
HSV	hsv(241, 68%, 77%)
CMYK	cmyk(66.3%, 67.9%, 0%, 23.1%)
CIE-LAB	lab(35.40, 42.43, -68.87)
CIE-LCH	lch(35.40, 80.89, 301.64°)
OKLab	oklab(46.08% 0.0214 -0.1988)
OKLCH	oklch(46.08% 0.2 276.1)
XYZ	xyz(13.9848, 8.6976, 53.1557)
Luminance	0.0870 (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

#423FC4 #C1C43F

analogous

#3F7FC4 #423FC4 #843FC4

triadic

#423FC4 #C4423F #3FC442

tetradic

#423FC4 #C43F7F #C1C43F #3FC484

square

#423FC4 #C43F7F #C1C43F #3FC484

split-complementary

#423FC4 #C4843F #7FC43F

monochromatic

#222068 #312E97 #423FC4 #706ED2 #9E9DE1

Accessibility & contrast

On white

7.66

#423FC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#423FC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423FC4

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423FC4	#FFFFFF	#000000	##FFFFFF
##423FC4	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C8

Deuteranopia (green-blind)

#004DC1

Tritanopia (blue-blind)

#00637C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423fc4;
/* rgb */ color: rgb(66, 63, 196);
/* oklch */ color: oklch(46.1% 0.200 276.1);

Tailwind

colors: {
  custom: {
    50: '#8775d7',
    500: '#423fc4',
    950: '#000000',
  },
}

SCSS

$custom: #423fc4;
$custom-light: #8775d7;
$custom-dark: #000000;

JSON

{
  "hex": "#423fc4",
  "rgb": {
    "r": 66,
    "g": 63,
    "b": 196
  },
  "hsl": {
    "h": 241.353,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.46082,
    "c": 0.19995,
    "h": 276.1
  },
  "luminance": 0.08699
}

Semantic roles & 50–950 ramp

primary

#423FC4

secondary

#CCCD92

accent

#DC4BD9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #423FC4

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

Preview Lab → · Contrast checker → · Palette generator →