#423A9B#423A9B

#423A9B is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.152 H 281.2°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#423A9B
RGB	rgb(66, 58, 155)
HSL	hsl(245, 46%, 42%)
HSV	hsv(245, 63%, 61%)
CMYK	cmyk(57.4%, 62.6%, 0%, 39.2%)
CIE-LAB	lab(30.76, 31.90, -52.02)
CIE-LCH	lch(30.76, 61.02, 301.52°)
OKLab	oklab(41.63% 0.0296 -0.1494)
OKLCH	oklch(41.63% 0.152 281.2)
XYZ	xyz(9.6744, 6.5503, 31.7585)
Luminance	0.0655 (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

#423A9B #939B3A

analogous

#3A639B #423A9B #733A9B

triadic

#423A9B #9B423A #3A9B42

tetradic

#423A9B #9B3A63 #939B3A #3A9B73

square

#423A9B #9B3A63 #939B3A #3A9B73

split-complementary

#423A9B #9B733A #639B3A

monochromatic

#1C1942 #2F296E #423A9B #5C53BF #8780CF

Accessibility & contrast

On white

9.09

#423A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#423A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423A9B

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423A9B	#FFFFFF	#000000	##FFFFFF
##423A9B	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9E

Deuteranopia (green-blind)

#004599

Tritanopia (blue-blind)

#135265

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #423a9b;
/* rgb */ color: rgb(66, 58, 155);
/* oklch */ color: oklch(41.6% 0.152 281.2);

Tailwind

colors: {
  custom: {
    50: '#7f70b9',
    500: '#423a9b',
    950: '#000000',
  },
}

SCSS

$custom: #423a9b;
$custom-light: #7f70b9;
$custom-dark: #000000;

JSON

{
  "hex": "#423a9b",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 155
  },
  "hsl": {
    "h": 244.948,
    "s": 45.54,
    "l": 41.765
  },
  "oklch": {
    "l": 0.41633,
    "c": 0.15229,
    "h": 281.2
  },
  "luminance": 0.06551
}

Semantic roles & 50–950 ramp

primary

#423A9B

secondary

#B4B978

accent

#D553CA

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #423A9B

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

Preview Lab → · Contrast checker → · Palette generator →