#373333#373333

#373333 is a dark, near-neutral grey. Relative luminance 0.034; OKLCH L 32.5% C 0.006 H 17.5°. Best body text is #FFFFFF at 12.47:1 contrast (WCAG AA passes).

Color values

HEX	#373333
RGB	rgb(55, 51, 51)
HSL	hsl(0, 4%, 21%)
HSV	hsv(0, 7%, 22%)
CMYK	cmyk(0%, 7.3%, 7.3%, 78.4%)
CIE-LAB	lab(21.65, 1.77, 0.64)
CIE-LCH	lch(21.65, 1.88, 19.78°)
OKLab	oklab(32.52% 0.0054 0.0017)
OKLCH	oklch(32.52% 0.006 17.5)
XYZ	xyz(3.3568, 3.4189, 3.6144)
Luminance	0.0342 (WCAG relative)
Temperature	neutral
Family	grey

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#373333 #333737

analogous

#373335 #373333 #373533

triadic

#373333 #333733 #333337

tetradic

#373333 #353733 #333737 #353337

square

#373333 #353733 #333737 #353337

split-complementary

#373333 #333735 #333537

monochromatic

#100F0F #171616 #373333 #575050 #776E6E

Accessibility & contrast

On white

12.47

#373333 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#373333 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #373333

12.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##373333	#FFFFFF	#000000	##FFFFFF
##373333	1.00	12.47	1.68	12.47
#FFFFFF	12.47	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343333

Deuteranopia (green-blind)

#353433

Tritanopia (blue-blind)

#383333

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #373333;
/* rgb */ color: rgb(55, 51, 51);
/* oklch */ color: oklch(32.5% 0.006 17.5);

Tailwind

colors: {
  custom: {
    50: '#6d6a6a',
    500: '#373333',
    950: '#000000',
  },
}

SCSS

$custom: #373333;
$custom-light: #6d6a6a;
$custom-dark: #000000;

JSON

{
  "hex": "#373333",
  "rgb": {
    "r": 55,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 3.774,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32523,
    "c": 0.00569,
    "h": 17.5
  },
  "luminance": 0.03419
}

Semantic roles & 50–950 ramp

primary

#373333

secondary

#606666

accent

#ADAD7B

background

#F6F6F6

surface

#EBEBEB

border

#C6C6C6

text

#070606

muted

#7A7A7A

Preview Lab

Preview with #373333

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

Preview Lab → · Contrast checker → · Palette generator →