#423AAF#423AAF

#423AAF is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.4% C 0.179 H 278.9°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#423AAF
RGB	rgb(66, 58, 175)
HSL	hsl(244, 50%, 46%)
HSV	hsv(244, 67%, 69%)
CMYK	cmyk(62.3%, 66.9%, 0%, 31.4%)
CIE-LAB	lab(32.43, 38.50, -61.33)
CIE-LCH	lch(32.43, 72.41, 302.12°)
OKLab	oklab(43.37% 0.0278 -0.1767)
OKLCH	oklch(43.37% 0.179 278.9)
XYZ	xyz(11.4952, 7.2786, 41.3483)
Luminance	0.0728 (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

#423AAF #A7AF3A

analogous

#3A6CAF #423AAF #7D3AAF

triadic

#423AAF #AF423A #3AAF42

tetradic

#423AAF #AF3A6C #A7AF3A #3AAF7D

square

#423AAF #AF3A6C #A7AF3A #3AAF7D

split-complementary

#423AAF #AF7D3A #6CAF3A

monochromatic

#1F1C53 #312B81 #423AAF #645DC9 #908BD9

Accessibility & contrast

On white

8.55

#423AAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#423AAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AAF

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AAF	#FFFFFF	#000000	##FFFFFF
##423AAF	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B3

Deuteranopia (green-blind)

#0048AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423aaf;
/* rgb */ color: rgb(66, 58, 175);
/* oklch */ color: oklch(43.4% 0.179 278.9);

Tailwind

colors: {
  custom: {
    50: '#8371c8',
    500: '#423aaf',
    950: '#000000',
  },
}

SCSS

$custom: #423aaf;
$custom-light: #8371c8;
$custom-dark: #000000;

JSON

{
  "hex": "#423aaf",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 175
  },
  "hsl": {
    "h": 244.103,
    "s": 50.215,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43371,
    "c": 0.1789,
    "h": 278.9
  },
  "luminance": 0.0728
}

Semantic roles & 50–950 ramp

primary

#423AAF

secondary

#BEC382

accent

#DA4ED0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423AAF

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

Preview Lab → · Contrast checker → · Palette generator →