#423CBE#423CBE

#423CBE is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.1% C 0.196 H 277.1°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#423CBE
RGB	rgb(66, 60, 190)
HSL	hsl(243, 52%, 49%)
HSV	hsv(243, 68%, 75%)
CMYK	cmyk(65.3%, 68.4%, 0%, 25.5%)
CIE-LAB	lab(34.20, 42.23, -67.31)
CIE-LCH	lch(34.20, 79.46, 302.11°)
OKLab	oklab(45.06% 0.0243 -0.1942)
OKLCH	oklch(45.06% 0.196 277.1)
XYZ	xyz(13.1539, 8.1066, 49.5768)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.54

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CBE #B8BE3C

analogous

#3C77BE #423CBE #833CBE

triadic

#423CBE #BE423C #3CBE42

tetradic

#423CBE #BE3C77 #B8BE3C #3CBE83

square

#423CBE #BE3C77 #B8BE3C #3CBE83

split-complementary

#423CBE #BE833C #77BE3C

monochromatic

#221F61 #322D8F #423CBE #6D68CF #9A96DE

Accessibility & contrast

On white

8.01

#423CBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#423CBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CBE

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CBE	#FFFFFF	#000000	##FFFFFF
##423CBE	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#004BBC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #423cbe;
/* rgb */ color: rgb(66, 60, 190);
/* oklch */ color: oklch(45.1% 0.196 277.1);

Tailwind

colors: {
  custom: {
    50: '#8673d3',
    500: '#423cbe',
    950: '#000000',
  },
}

SCSS

$custom: #423cbe;
$custom-light: #8673d3;
$custom-dark: #000000;

JSON

{
  "hex": "#423cbe",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 190
  },
  "hsl": {
    "h": 242.769,
    "s": 52,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45058,
    "c": 0.19575,
    "h": 277.1
  },
  "luminance": 0.08108
}

Semantic roles & 50–950 ramp

primary

#423CBE

secondary

#C7CA8C

accent

#DB4CD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423CBE

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

Preview Lab → · Contrast checker → · Palette generator →