#423BDB#423BDB

#423BDB is a mid, highly saturated blue. Relative luminance 0.094; OKLCH L 47.7% C 0.232 H 275.0°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#423BDB
RGB	rgb(66, 59, 219)
HSL	hsl(243, 69%, 55%)
HSV	hsv(243, 73%, 86%)
CMYK	cmyk(69.9%, 73.1%, 0%, 14.1%)
CIE-LAB	lab(36.74, 52.11, -79.97)
CIE-LCH	lch(36.74, 95.45, 303.09°)
OKLab	oklab(47.7% 0.0201 -0.2312)
OKLCH	oklch(47.7% 0.232 275)
XYZ	xyz(16.5927, 9.3991, 67.9439)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blurple

#5539CC

ΔE00 2.80

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423BDB #D4DB3B

analogous

#3B84DB #423BDB #923BDB

triadic

#423BDB #DB423B #3BDB42

tetradic

#423BDB #DB3B84 #D4DB3B #3BDB92

square

#423BDB #DB3B84 #D4DB3B #3BDB92

split-complementary

#423BDB #DB923B #84DB3B

monochromatic

#1D1883 #2822B7 #423BDB #746FE4 #A6A2EE

Accessibility & contrast

On white

7.29

#423BDB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#423BDB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BDB

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BDB	#FFFFFF	#000000	##FFFFFF
##423BDB	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EE0

Deuteranopia (green-blind)

#004FD8

Tritanopia (blue-blind)

#006988

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #423bdb;
/* rgb */ color: rgb(66, 59, 219);
/* oklch */ color: oklch(47.7% 0.232 275.0);

Tailwind

colors: {
  custom: {
    50: '#8c73e8',
    500: '#423bdb',
    950: '#000000',
  },
}

SCSS

$custom: #423bdb;
$custom-light: #8c73e8;
$custom-dark: #000000;

JSON

{
  "hex": "#423bdb",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 219
  },
  "hsl": {
    "h": 242.625,
    "s": 68.966,
    "l": 54.51
  },
  "oklch": {
    "l": 0.477,
    "c": 0.2321,
    "h": 275
  },
  "luminance": 0.09401
}

Semantic roles & 50–950 ramp

primary

#423BDB

secondary

#D8DB97

accent

#EC3CE4

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #423BDB

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

Preview Lab → · Contrast checker → · Palette generator →