#424B54#424B54

#424B54 is a dark, near-neutral cyan. Relative luminance 0.068; OKLCH L 40.8% C 0.019 H 248.3°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#424B54
RGB	rgb(66, 75, 84)
HSL	hsl(210, 12%, 29%)
HSV	hsv(210, 21%, 33%)
CMYK	cmyk(21.4%, 10.7%, 0%, 67.1%)
CIE-LAB	lab(31.42, -1.37, -6.54)
CIE-LCH	lch(31.42, 6.68, 258.20°)
OKLab	oklab(40.82% -0.0071 -0.0177)
OKLCH	oklch(40.82% 0.019 248.3)
XYZ	xyz(6.3627, 6.8303, 9.3689)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B54 #544B42

analogous

#425454 #424B54 #424254

triadic

#424B54 #54424B #4B5442

tetradic

#424B54 #544254 #544B42 #425442

square

#424B54 #544254 #544B42 #425442

split-complementary

#424B54 #544242 #545442

monochromatic

#0D0F11 #272C32 #424B54 #5D6A76 #7A8896

Accessibility & contrast

On white

8.88

#424B54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#424B54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B54

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B54	#FFFFFF	#000000	##FFFFFF
##424B54	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484B54

Deuteranopia (green-blind)

#454954

Tritanopia (blue-blind)

#3D4D4E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #424b54;
/* rgb */ color: rgb(66, 75, 84);
/* oklch */ color: oklch(40.8% 0.019 248.3);

Tailwind

colors: {
  custom: {
    50: '#767d84',
    500: '#424b54',
    950: '#000000',
  },
}

SCSS

$custom: #424b54;
$custom-light: #767d84;
$custom-dark: #000000;

JSON

{
  "hex": "#424b54",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 84
  },
  "hsl": {
    "h": 210,
    "s": 12,
    "l": 29.412
  },
  "oklch": {
    "l": 0.4082,
    "c": 0.01911,
    "h": 248.3
  },
  "luminance": 0.0683
}

Semantic roles & 50–950 ramp

primary

#424B54

secondary

#83796F

accent

#9473B5

background

#F7F7F8

surface

#EDEEEF

border

#C8C9CA

text

#08090A

muted

#7B7B7C

Preview Lab

Preview with #424B54

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

Preview Lab → · Contrast checker → · Palette generator →