#423AAA#423AAA

#423AAA is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.172 H 279.5°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#423AAA
RGB	rgb(66, 58, 170)
HSL	hsl(244, 49%, 45%)
HSV	hsv(244, 66%, 67%)
CMYK	cmyk(61.2%, 65.9%, 0%, 33.3%)
CIE-LAB	lab(32.00, 36.86, -59.04)
CIE-LCH	lch(32.00, 69.60, 301.97°)
OKLab	oklab(42.92% 0.0283 -0.17)
OKLCH	oklch(42.92% 0.172 279.5)
XYZ	xyz(11.0132, 7.0858, 38.8098)
Luminance	0.0709 (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

#423AAA #A2AA3A

analogous

#3A6AAA #423AAA #7A3AAA

triadic

#423AAA #AA423A #3AAA42

tetradic

#423AAA #AA3A6A #A2AA3A #3AAA7A

square

#423AAA #AA3A6A #A2AA3A #3AAA7A

split-complementary

#423AAA #AA7A3A #6AAA3A

monochromatic

#1F1B4F #302A7C #423AAA #625AC7 #8E88D6

Accessibility & contrast

On white

8.69

#423AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#423AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AAA

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AAA	#FFFFFF	#000000	##FFFFFF
##423AAA	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AE

Deuteranopia (green-blind)

#0047A8

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #423aaa;
/* rgb */ color: rgb(66, 58, 170);
/* oklch */ color: oklch(42.9% 0.172 279.5);

Tailwind

colors: {
  custom: {
    50: '#8271c4',
    500: '#423aaa',
    950: '#000000',
  },
}

SCSS

$custom: #423aaa;
$custom-light: #8271c4;
$custom-dark: #000000;

JSON

{
  "hex": "#423aaa",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 170
  },
  "hsl": {
    "h": 244.286,
    "s": 49.123,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42924,
    "c": 0.17237,
    "h": 279.5
  },
  "luminance": 0.07087
}

Semantic roles & 50–950 ramp

primary

#423AAA

secondary

#BCC17F

accent

#D94FCF

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #423AAA

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

Preview Lab → · Contrast checker → · Palette generator →