#423BCC#423BCC

#423BCC is a mid, highly saturated blue. Relative luminance 0.086; OKLCH L 46.2% C 0.214 H 276.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#423BCC
RGB	rgb(66, 59, 204)
HSL	hsl(243, 59%, 52%)
HSV	hsv(243, 71%, 80%)
CMYK	cmyk(67.6%, 71.1%, 0%, 20%)
CIE-LAB	lab(35.29, 47.35, -73.70)
CIE-LCH	lch(35.29, 87.60, 302.72°)
OKLab	oklab(46.23% 0.0228 -0.2129)
OKLCH	oklch(46.23% 0.214 276.1)
XYZ	xyz(14.7062, 8.6445, 58.0086)
Luminance	0.0865 (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

#423BCC #C5CC3B

analogous

#3B7CCC #423BCC #8B3BCC

triadic

#423BCC #CC423B #3BCC42

tetradic

#423BCC #CC3B7C #C5CC3B #3BCC8B

square

#423BCC #CC3B7C #C5CC3B #3BCC8B

split-complementary

#423BCC #CC8B3B #7CCC3B

monochromatic

#211D70 #2F2AA0 #423BCC #716CD9 #A09CE5

Accessibility & contrast

On white

7.69

#423BCC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#423BCC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BCC

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BCC	#FFFFFF	#000000	##FFFFFF
##423BCC	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059D0

Deuteranopia (green-blind)

#004DC9

Tritanopia (blue-blind)

#00637F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423bcc;
/* rgb */ color: rgb(66, 59, 204);
/* oklch */ color: oklch(46.2% 0.214 276.1);

Tailwind

colors: {
  custom: {
    50: '#8973dd',
    500: '#423bcc',
    950: '#000000',
  },
}

SCSS

$custom: #423bcc;
$custom-light: #8973dd;
$custom-dark: #000000;

JSON

{
  "hex": "#423bcc",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 204
  },
  "hsl": {
    "h": 242.897,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46231,
    "c": 0.21416,
    "h": 276.1
  },
  "luminance": 0.08646
}

Semantic roles & 50–950 ramp

primary

#423BCC

secondary

#CED192

accent

#E246DA

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423BCC

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

Preview Lab → · Contrast checker → · Palette generator →