#423CBD#423CBD

#423CBD is a dark, vivid blue. Relative luminance 0.081; OKLCH L 45.0% C 0.194 H 277.2°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#423CBD
RGB	rgb(66, 60, 189)
HSL	hsl(243, 52%, 49%)
HSV	hsv(243, 68%, 74%)
CMYK	cmyk(65.1%, 68.3%, 0%, 25.9%)
CIE-LAB	lab(34.11, 41.90, -66.86)
CIE-LCH	lch(34.11, 78.91, 302.08°)
OKLab	oklab(44.97% 0.0244 -0.1929)
OKLCH	oklch(44.97% 0.194 277.2)
XYZ	xyz(13.0450, 8.0630, 49.0031)
Luminance	0.0806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.49

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CBD #B7BD3C

analogous

#3C77BD #423CBD #833CBD

triadic

#423CBD #BD423C #3CBD42

tetradic

#423CBD #BD3C77 #B7BD3C #3CBD83

square

#423CBD #BD3C77 #B7BD3C #3CBD83

split-complementary

#423CBD #BD833C #77BD3C

monochromatic

#221F60 #322D8F #423CBD #6C67CF #9996DE

Accessibility & contrast

On white

8.04

#423CBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#423CBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CBD

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CBD	#FFFFFF	#000000	##FFFFFF
##423CBD	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C1

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #423cbd;
/* rgb */ color: rgb(66, 60, 189);
/* oklch */ color: oklch(45.0% 0.194 277.2);

Tailwind

colors: {
  custom: {
    50: '#8573d2',
    500: '#423cbd',
    950: '#000000',
  },
}

SCSS

$custom: #423cbd;
$custom-light: #8573d2;
$custom-dark: #000000;

JSON

{
  "hex": "#423cbd",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 189
  },
  "hsl": {
    "h": 242.791,
    "s": 51.807,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44966,
    "c": 0.19449,
    "h": 277.2
  },
  "luminance": 0.08064
}

Semantic roles & 50–950 ramp

primary

#423CBD

secondary

#C6C98C

accent

#DB4DD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423CBD

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

Preview Lab → · Contrast checker → · Palette generator →