#423D64#423D64

#423D64 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.3% C 0.066 H 288.8°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#423D64
RGB	rgb(66, 61, 100)
HSL	hsl(248, 24%, 32%)
HSV	hsv(248, 39%, 39%)
CMYK	cmyk(34%, 39%, 0%, 60.8%)
CIE-LAB	lab(27.89, 12.27, -22.23)
CIE-LCH	lch(27.89, 25.39, 298.89°)
OKLab	oklab(38.31% 0.0211 -0.0621)
OKLCH	oklch(38.31% 0.066 288.8)
XYZ	xyz(6.2152, 5.4157, 12.7720)
Luminance	0.0542 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423D64 #5F643D

analogous

#3D4C64 #423D64 #563D64

triadic

#423D64 #64423D #3D6442

tetradic

#423D64 #643D4C #5F643D #3D6456

square

#423D64 #643D4C #5F643D #3D6456

split-complementary

#423D64 #64563D #4C643D

monochromatic

#100F18 #29263E #423D64 #5B548A #7972A9

Accessibility & contrast

On white

10.08

#423D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#423D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423D64

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423D64	#FFFFFF	#000000	##FFFFFF
##423D64	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324366

Deuteranopia (green-blind)

#314163

Tritanopia (blue-blind)

#3A444B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #423d64;
/* rgb */ color: rgb(66, 61, 100);
/* oklch */ color: oklch(38.3% 0.066 288.8);

Tailwind

colors: {
  custom: {
    50: '#777290',
    500: '#423d64',
    950: '#000000',
  },
}

SCSS

$custom: #423d64;
$custom-light: #777290;
$custom-dark: #000000;

JSON

{
  "hex": "#423d64",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 247.692,
    "s": 24.224,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38311,
    "c": 0.06559,
    "h": 288.8
  },
  "luminance": 0.05416
}

Semantic roles & 50–950 ramp

primary

#423D64

secondary

#8E9469

accent

#C167B5

background

#F7F6F8

surface

#EDECF0

border

#C8C7CB

text

#09080C

muted

#7B7B7D

Preview Lab

Preview with #423D64

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

Preview Lab → · Contrast checker → · Palette generator →