#423A7B#423A7B

#423A7B is a dark, moderate blue. Relative luminance 0.056; OKLCH L 39.2% C 0.106 H 286.0°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#423A7B
RGB	rgb(66, 58, 123)
HSL	hsl(247, 36%, 35%)
HSV	hsv(247, 53%, 48%)
CMYK	cmyk(46.3%, 52.8%, 0%, 51.8%)
CIE-LAB	lab(28.42, 21.41, -36.02)
CIE-LCH	lch(28.42, 41.90, 300.73°)
OKLab	oklab(39.15% 0.0294 -0.1024)
OKLCH	oklch(39.15% 0.106 286)
XYZ	xyz(7.3339, 5.6141, 19.4323)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423A7B #737B3A

analogous

#3A527B #423A7B #623A7B

triadic

#423A7B #7B423A #3A7B42

tetradic

#423A7B #7B3A52 #737B3A #3A7B62

square

#423A7B #7B3A52 #737B3A #3A7B62

split-complementary

#423A7B #7B623A #527B3A

monochromatic

#151328 #2C2651 #423A7B #584EA5 #7C73BD

Accessibility & contrast

On white

9.89

#423A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#423A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423A7B

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423A7B	#FFFFFF	#000000	##FFFFFF
##423A7B	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D457D

Deuteranopia (green-blind)

#1B417A

Tritanopia (blue-blind)

#304854

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #423a7b;
/* rgb */ color: rgb(66, 58, 123);
/* oklch */ color: oklch(39.2% 0.106 286.0);

Tailwind

colors: {
  custom: {
    50: '#7a70a2',
    500: '#423a7b',
    950: '#000000',
  },
}

SCSS

$custom: #423a7b;
$custom-light: #7a70a2;
$custom-dark: #000000;

JSON

{
  "hex": "#423a7b",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 123
  },
  "hsl": {
    "h": 247.385,
    "s": 35.912,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39154,
    "c": 0.10648,
    "h": 286
  },
  "luminance": 0.05614
}

Semantic roles & 50–950 ramp

primary

#423A7B

secondary

#9FA66B

accent

#CC5CBE

background

#F7F6FA

surface

#EEECF3

border

#C9C7CD

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #423A7B

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

Preview Lab → · Contrast checker → · Palette generator →