#423C8F#423C8F

#423C8F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.133 H 282.1°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#423C8F
RGB	rgb(66, 60, 143)
HSL	hsl(244, 41%, 40%)
HSV	hsv(244, 58%, 56%)
CMYK	cmyk(53.8%, 58%, 0%, 43.9%)
CIE-LAB	lab(30.33, 26.64, -45.37)
CIE-LCH	lch(30.33, 52.62, 300.42°)
OKLab	oklab(41.03% 0.0278 -0.1298)
OKLCH	oklch(41.03% 0.133 282.1)
XYZ	xyz(8.8190, 6.3726, 26.7466)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423C8F #898F3C

analogous

#3C608F #423C8F #6B3C8F

triadic

#423C8F #8F423C #3C8F42

tetradic

#423C8F #8F3C60 #898F3C #3C8F6B

square

#423C8F #8F3C60 #898F3C #3C8F6B

split-complementary

#423C8F #8F6B3C #608F3C

monochromatic

#1A1839 #2E2A64 #423C8F #5952B6 #827DC8

Accessibility & contrast

On white

9.23

#423C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#423C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423C8F

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423C8F	#FFFFFF	#000000	##FFFFFF
##423C8F	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A92

Deuteranopia (green-blind)

#00458D

Tritanopia (blue-blind)

#224F5F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #423c8f;
/* rgb */ color: rgb(66, 60, 143);
/* oklch */ color: oklch(41.0% 0.133 282.1);

Tailwind

colors: {
  custom: {
    50: '#7d72b0',
    500: '#423c8f',
    950: '#000000',
  },
}

SCSS

$custom: #423c8f;
$custom-light: #7d72b0;
$custom-dark: #000000;

JSON

{
  "hex": "#423c8f",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 143
  },
  "hsl": {
    "h": 244.337,
    "s": 40.887,
    "l": 39.804
  },
  "oklch": {
    "l": 0.41028,
    "c": 0.13278,
    "h": 282.1
  },
  "luminance": 0.06373
}

Semantic roles & 50–950 ramp

primary

#423C8F

secondary

#AEB275

accent

#D157C8

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #423C8F

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

Preview Lab → · Contrast checker → · Palette generator →