#423789#423789

#423789 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.6% C 0.131 H 284.8°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#423789
RGB	rgb(66, 55, 137)
HSL	hsl(248, 43%, 38%)
HSV	hsv(248, 60%, 54%)
CMYK	cmyk(51.8%, 59.9%, 0%, 46.3%)
CIE-LAB	lab(28.63, 27.89, -44.42)
CIE-LCH	lch(28.63, 52.45, 302.13°)
OKLab	oklab(39.63% 0.0336 -0.1271)
OKLCH	oklch(39.63% 0.131 284.8)
XYZ	xyz(8.1270, 5.6964, 24.3333)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423789 #7E8937

analogous

#375589 #423789 #6B3789

triadic

#423789 #894237 #378942

tetradic

#423789 #893755 #7E8937 #37896B

square

#423789 #893755 #7E8937 #37896B

split-complementary

#423789 #896B37 #558937

monochromatic

#181432 #2D255D #423789 #5749B5 #7F73C7

Accessibility & contrast

On white

9.82

#423789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#423789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423789

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423789	#FFFFFF	#000000	##FFFFFF
##423789	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468C

Deuteranopia (green-blind)

#004187

Tritanopia (blue-blind)

#274A5A

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #423789;
/* rgb */ color: rgb(66, 55, 137);
/* oklch */ color: oklch(39.6% 0.131 284.8);

Tailwind

colors: {
  custom: {
    50: '#7c6eac',
    500: '#423789',
    950: '#000000',
  },
}

SCSS

$custom: #423789;
$custom-light: #7c6eac;
$custom-dark: #000000;

JSON

{
  "hex": "#423789",
  "rgb": {
    "r": 66,
    "g": 55,
    "b": 137
  },
  "hsl": {
    "h": 248.049,
    "s": 42.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39629,
    "c": 0.13141,
    "h": 284.8
  },
  "luminance": 0.05697
}

Semantic roles & 50–950 ramp

primary

#423789

secondary

#A7B06C

accent

#D255C2

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #423789

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

Preview Lab → · Contrast checker → · Palette generator →