#424B64#424B64

#424B64 is a dark, muted blue. Relative luminance 0.071; OKLCH L 41.5% C 0.044 H 269.1°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#424B64
RGB	rgb(66, 75, 100)
HSL	hsl(224, 20%, 33%)
HSV	hsv(224, 34%, 39%)
CMYK	cmyk(34%, 25%, 0%, 60.8%)
CIE-LAB	lab(32.06, 3.06, -15.76)
CIE-LCH	lch(32.06, 16.06, 281.00°)
OKLab	oklab(41.53% -0.0007 -0.0436)
OKLCH	oklch(41.53% 0.044 269.1)
XYZ	xyz(7.0624, 7.1102, 13.0544)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B64 #645B42

analogous

#425C64 #424B64 #4A4264

triadic

#424B64 #64424B #4B6442

tetradic

#424B64 #64425C #645B42 #42644A

square

#424B64 #64425C #645B42 #42644A

split-complementary

#424B64 #644A42 #5C6442

monochromatic

#11141A #2A2F3F #424B64 #5A6789 #7A86A7

Accessibility & contrast

On white

8.67

#424B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#424B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B64

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B64	#FFFFFF	#000000	##FFFFFF
##424B64	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#434D65

Deuteranopia (green-blind)

#404A63

Tritanopia (blue-blind)

#385054

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #424b64;
/* rgb */ color: rgb(66, 75, 100);
/* oklch */ color: oklch(41.5% 0.044 269.1);

Tailwind

colors: {
  custom: {
    50: '#777d90',
    500: '#424b64',
    950: '#000000',
  },
}

SCSS

$custom: #424b64;
$custom-light: #777d90;
$custom-dark: #000000;

JSON

{
  "hex": "#424b64",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 100
  },
  "hsl": {
    "h": 224.118,
    "s": 20.482,
    "l": 32.549
  },
  "oklch": {
    "l": 0.41532,
    "c": 0.04357,
    "h": 269.1
  },
  "luminance": 0.07111
}

Semantic roles & 50–950 ramp

primary

#424B64

secondary

#93896F

accent

#A76BBD

background

#F7F7F8

surface

#EDEEF0

border

#C8C9CB

text

#09090C

muted

#7B7B7D

Preview Lab

Preview with #424B64

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

Preview Lab → · Contrast checker → · Palette generator →