#424C58#424C58

#424C58 is a dark, muted cyan. Relative luminance 0.070; OKLCH L 41.2% C 0.024 H 253.1°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#424C58
RGB	rgb(66, 76, 88)
HSL	hsl(213, 14%, 30%)
HSV	hsv(213, 25%, 35%)
CMYK	cmyk(25%, 13.6%, 0%, 65.5%)
CIE-LAB	lab(31.88, -0.94, -8.40)
CIE-LCH	lch(31.88, 8.46, 263.61°)
OKLab	oklab(41.23% -0.007 -0.0229)
OKLCH	oklch(41.23% 0.024 253.1)
XYZ	xyz(6.5922, 7.0315, 10.2405)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C58 #584E42

analogous

#425758 #424C58 #434258

triadic

#424C58 #58424C #4C5842

tetradic

#424C58 #584257 #584E42 #425843

square

#424C58 #584257 #584E42 #425843

split-complementary

#424C58 #584342 #575842

monochromatic

#0E1012 #282E35 #424C58 #5C6A7B #7A899B

Accessibility & contrast

On white

8.73

#424C58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#424C58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C58

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C58	#FFFFFF	#000000	##FFFFFF
##424C58	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484C59

Deuteranopia (green-blind)

#454A58

Tritanopia (blue-blind)

#3C4F50

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #424c58;
/* rgb */ color: rgb(66, 76, 88);
/* oklch */ color: oklch(41.2% 0.024 253.1);

Tailwind

colors: {
  custom: {
    50: '#767e87',
    500: '#424c58',
    950: '#000000',
  },
}

SCSS

$custom: #424c58;
$custom-light: #767e87;
$custom-dark: #000000;

JSON

{
  "hex": "#424c58",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 88
  },
  "hsl": {
    "h": 212.727,
    "s": 14.286,
    "l": 30.196
  },
  "oklch": {
    "l": 0.41231,
    "c": 0.02393,
    "h": 253.1
  },
  "luminance": 0.07032
}

Semantic roles & 50–950 ramp

primary

#424C58

secondary

#877C6F

accent

#9771B7

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #424C58

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

Preview Lab → · Contrast checker → · Palette generator →