#424B59#424B59

#424B59 is a dark, muted blue. Relative luminance 0.069; OKLCH L 41.0% C 0.026 H 259.2°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#424B59
RGB	rgb(66, 75, 89)
HSL	hsl(217, 15%, 30%)
HSV	hsv(217, 26%, 35%)
CMYK	cmyk(25.8%, 15.7%, 0%, 65.1%)
CIE-LAB	lab(31.60, -0.04, -9.46)
CIE-LCH	lch(31.60, 9.46, 269.77°)
OKLab	oklab(41.03% -0.0049 -0.0258)
OKLCH	oklch(41.03% 0.026 259.2)
XYZ	xyz(6.5655, 6.9115, 10.4374)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B59 #595042

analogous

#425659 #424B59 #444259

triadic

#424B59 #59424B #4B5942

tetradic

#424B59 #594256 #595042 #425944

square

#424B59 #594256 #595042 #425944

split-complementary

#424B59 #594442 #565942

monochromatic

#0E1013 #282D36 #424B59 #5C697C #79879C

Accessibility & contrast

On white

8.81

#424B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#424B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B59

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B59	#FFFFFF	#000000	##FFFFFF
##424B59	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464C5A

Deuteranopia (green-blind)

#444959

Tritanopia (blue-blind)

#3C4E50

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #424b59;
/* rgb */ color: rgb(66, 75, 89);
/* oklch */ color: oklch(41.0% 0.026 259.2);

Tailwind

colors: {
  custom: {
    50: '#767d87',
    500: '#424b59',
    950: '#000000',
  },
}

SCSS

$custom: #424b59;
$custom-light: #767d87;
$custom-dark: #000000;

JSON

{
  "hex": "#424b59",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 89
  },
  "hsl": {
    "h": 216.522,
    "s": 14.839,
    "l": 30.392
  },
  "oklch": {
    "l": 0.41029,
    "c": 0.02628,
    "h": 259.2
  },
  "luminance": 0.06912
}

Semantic roles & 50–950 ramp

primary

#424B59

secondary

#887E6F

accent

#9C70B8

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424B59

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

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