#423A9A#423A9A

#423A9A is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.151 H 281.3°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#423A9A
RGB	rgb(66, 58, 154)
HSL	hsl(245, 45%, 42%)
HSV	hsv(245, 62%, 60%)
CMYK	cmyk(57.1%, 62.3%, 0%, 39.6%)
CIE-LAB	lab(30.68, 31.57, -51.54)
CIE-LCH	lch(30.68, 60.44, 301.49°)
OKLab	oklab(41.55% 0.0297 -0.148)
OKLCH	oklch(41.55% 0.151 281.3)
XYZ	xyz(9.5907, 6.5168, 31.3181)
Luminance	0.0652 (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

#423A9A #929A3A

analogous

#3A629A #423A9A #723A9A

triadic

#423A9A #9A423A #3A9A42

tetradic

#423A9A #9A3A62 #929A3A #3A9A72

square

#423A9A #9A3A62 #929A3A #3A9A72

split-complementary

#423A9A #9A723A #629A3A

monochromatic

#1C1941 #2F296E #423A9A #5C53BE #867FCF

Accessibility & contrast

On white

9.12

#423A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#423A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423A9A

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423A9A	#FFFFFF	#000000	##FFFFFF
##423A9A	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9D

Deuteranopia (green-blind)

#004598

Tritanopia (blue-blind)

#155164

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #423a9a;
/* rgb */ color: rgb(66, 58, 154);
/* oklch */ color: oklch(41.5% 0.151 281.3);

Tailwind

colors: {
  custom: {
    50: '#7f70b9',
    500: '#423a9a',
    950: '#000000',
  },
}

SCSS

$custom: #423a9a;
$custom-light: #7f70b9;
$custom-dark: #000000;

JSON

{
  "hex": "#423a9a",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 154
  },
  "hsl": {
    "h": 245,
    "s": 45.283,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41549,
    "c": 0.15093,
    "h": 281.3
  },
  "luminance": 0.06517
}

Semantic roles & 50–950 ramp

primary

#423A9A

secondary

#B3B977

accent

#D553CA

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0711

muted

#7C7A80

Preview Lab

Preview with #423A9A

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

Preview Lab → · Contrast checker → · Palette generator →