#423BAC#423BAC

#423BAC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.174 H 279.0°. Best body text is #FFFFFF at 8.56:1 contrast (WCAG AA passes).

Color values

HEX	#423BAC
RGB	rgb(66, 59, 172)
HSL	hsl(244, 49%, 45%)
HSV	hsv(244, 66%, 67%)
CMYK	cmyk(61.6%, 65.7%, 0%, 32.5%)
CIE-LAB	lab(32.40, 36.91, -59.59)
CIE-LCH	lch(32.40, 70.09, 301.77°)
OKLab	oklab(43.27% 0.0273 -0.1716)
OKLCH	oklch(43.27% 0.174 279)
XYZ	xyz(11.2547, 7.2639, 39.8307)
Luminance	0.0727 (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

#423BAC #A5AC3B

analogous

#3B6CAC #423BAC #7B3BAC

triadic

#423BAC #AC423B #3BAC42

tetradic

#423BAC #AC3B6C #A5AC3B #3BAC7B

square

#423BAC #AC3B6C #A5AC3B #3BAC7B

split-complementary

#423BAC #AC7B3B #6CAC3B

monochromatic

#1F1C51 #312B7E #423BAC #635DC7 #8F8AD7

Accessibility & contrast

On white

8.56

#423BAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#423BAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BAC

8.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BAC	#FFFFFF	#000000	##FFFFFF
##423BAC	1.00	8.56	2.45	8.56
#FFFFFF	8.56	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #423bac;
/* rgb */ color: rgb(66, 59, 172);
/* oklch */ color: oklch(43.3% 0.174 279.0);

Tailwind

colors: {
  custom: {
    50: '#8272c6',
    500: '#423bac',
    950: '#000000',
  },
}

SCSS

$custom: #423bac;
$custom-light: #8272c6;
$custom-dark: #000000;

JSON

{
  "hex": "#423bac",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 172
  },
  "hsl": {
    "h": 243.717,
    "s": 48.918,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43267,
    "c": 0.17378,
    "h": 279
  },
  "luminance": 0.07265
}

Semantic roles & 50–950 ramp

primary

#423BAC

secondary

#BDC181

accent

#D84FD0

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423BAC

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

Preview Lab → · Contrast checker → · Palette generator →