#424B5A#424B5A

#424B5A is a dark, muted blue. Relative luminance 0.069; OKLCH L 41.1% C 0.028 H 260.6°. Best body text is #FFFFFF at 8.80:1 contrast (WCAG AA passes).

Color values

HEX	#424B5A
RGB	rgb(66, 75, 90)
HSL	hsl(218, 15%, 31%)
HSV	hsv(218, 27%, 35%)
CMYK	cmyk(26.7%, 16.7%, 0%, 64.7%)
CIE-LAB	lab(31.64, 0.23, -10.03)
CIE-LCH	lch(31.64, 10.04, 271.34°)
OKLab	oklab(41.07% -0.0045 -0.0274)
OKLCH	oklch(41.07% 0.028 260.6)
XYZ	xyz(6.6078, 6.9284, 10.6600)
Luminance	0.0693 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B5A #5A5142

analogous

#42575A #424B5A #45425A

triadic

#424B5A #5A424B #4B5A42

tetradic

#424B5A #5A4257 #5A5142 #425A45

square

#424B5A #5A4257 #5A5142 #425A45

split-complementary

#424B5A #5A4542 #575A42

monochromatic

#0E1013 #282E37 #424B5A #5C687D #79879D

Accessibility & contrast

On white

8.80

#424B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#424B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B5A

8.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B5A	#FFFFFF	#000000	##FFFFFF
##424B5A	1.00	8.80	2.39	8.80
#FFFFFF	8.80	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5B

Deuteranopia (green-blind)

#44495A

Tritanopia (blue-blind)

#3C4E50

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #424b5a;
/* rgb */ color: rgb(66, 75, 90);
/* oklch */ color: oklch(41.1% 0.028 260.6);

Tailwind

colors: {
  custom: {
    50: '#777d88',
    500: '#424b5a',
    950: '#000000',
  },
}

SCSS

$custom: #424b5a;
$custom-light: #777d88;
$custom-dark: #000000;

JSON

{
  "hex": "#424b5a",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 90
  },
  "hsl": {
    "h": 217.5,
    "s": 15.385,
    "l": 30.588
  },
  "oklch": {
    "l": 0.41072,
    "c": 0.0278,
    "h": 260.6
  },
  "luminance": 0.06929
}

Semantic roles & 50–950 ramp

primary

#424B5A

secondary

#897F6F

accent

#9D70B8

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424B5A

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

Preview Lab → · Contrast checker → · Palette generator →