#424657#424657

#424657 is a dark, muted blue. Relative luminance 0.062; OKLCH L 39.7% C 0.029 H 274.6°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#424657
RGB	rgb(66, 70, 87)
HSL	hsl(229, 14%, 30%)
HSV	hsv(229, 24%, 34%)
CMYK	cmyk(24.1%, 19.5%, 0%, 65.9%)
CIE-LAB	lab(29.98, 2.63, -10.64)
CIE-LCH	lch(29.98, 10.96, 283.88°)
OKLab	oklab(39.73% 0.0024 -0.0291)
OKLCH	oklch(39.73% 0.029 274.6)
XYZ	xyz(6.1568, 6.2266, 9.8924)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424657 #575342

analogous

#425157 #424657 #484257

triadic

#424657 #574246 #465742

tetradic

#424657 #574251 #575342 #425748

square

#424657 #574251 #575342 #425748

split-complementary

#424657 #574842 #515742

monochromatic

#0D0E11 #282A34 #424657 #5C627A #7A809A

Accessibility & contrast

On white

9.35

#424657 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#424657 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424657

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424657	#FFFFFF	#000000	##FFFFFF
##424657	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414758

Deuteranopia (green-blind)

#404657

Tritanopia (blue-blind)

#3D494C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #424657;
/* rgb */ color: rgb(66, 70, 87);
/* oklch */ color: oklch(39.7% 0.029 274.6);

Tailwind

colors: {
  custom: {
    50: '#767986',
    500: '#424657',
    950: '#000000',
  },
}

SCSS

$custom: #424657;
$custom-light: #767986;
$custom-dark: #000000;

JSON

{
  "hex": "#424657",
  "rgb": {
    "r": 66,
    "g": 70,
    "b": 87
  },
  "hsl": {
    "h": 228.571,
    "s": 13.725,
    "l": 30
  },
  "oklch": {
    "l": 0.39729,
    "c": 0.02917,
    "h": 274.6
  },
  "luminance": 0.06227
}

Semantic roles & 50–950 ramp

primary

#424657

secondary

#86826F

accent

#A971B7

background

#F7F7F8

surface

#EDEDEF

border

#C8C8CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424657

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

Preview Lab → · Contrast checker → · Palette generator →