#737373 Color

#737373 is rgb(115, 115, 115) in RGB, hsl(0, 0%, 45%) in HSL, and about cmyk(0%, 0%, 0%, 55%) in CMYK. It has no registered color name of its own — the closest is Sonic Silver (#757575), indistinguishable to the eye at ΔE 0.8. White text is the more readable choice on this background.

#737373

HEX#737373

RGBrgb(115, 115, 115)

HSLhsl(0, 0%, 45%)

HSVhsv(0, 0%, 45%)

CMYKcmyk(0%, 0%, 0%, 55%)

OKLCHoklch(55.6% 0 0)

LABlab(48.44% -0.00 0.00)

LCHlch(48.44% 0.00 0.00)

What #737373 Is Called

Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #737373, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.

Sonic Silver#757575ΔE 0.8 Nickel#727472ΔE 1.38 Dim Gray#696969ΔE 4.03 Steel#71797EΔE 4.83 Granite Gray#676767ΔE 4.84 Gray#808080ΔE 5.14

Browse the full index of named colors A-Z or every gray in the library.

#737373 Channel Values

How #737373 breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.

Model	Channels	Notes
RGB	R 115 · G 115 · B 115	8-bit channels as sent to the display
HSL	H 0° · S 0% · L 45%	Easiest model for building lighter and darker variants
HSV	H 0° · S 0% · V 45%	Matches the picker in most design tools
CMYK	C 0% · M 0% · Y 0% · K 55%	Approximate ink mix; confirm with an ICC profile before printing
Luminance	4.74:1 vs white · 4.43:1 vs black	WCAG 2.2 relative-luminance contrast ratios

Text Contrast & Accessibility

WCAG 2.2 contrast ratios for text on a #737373 background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.

TextWhite text4.74:1AA normal AA large AAA normal

Fails AABlack text4.43:1AA normal AA large AAA normal

Need a specific ratio against another background? Open #737373 in the contrast checker.

Colors That Go With #737373

Pairings derived from color-wheel relationships. The complementary color sits opposite #737373; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.

Base

Complementary

Analogous

Analogous

Triadic

Triadic

Split comp.

Split comp.

Tints & Shades of #737373

Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.

Tints

Shades

Want a full 50-950 ramp with semantic roles? Generate design tokens from #737373.

How #737373 Looks with Color Vision Deficiency

Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.

Typical#737373

Protanopia#737373

Protanomaly#737373

Deuteranopia#737373

Deuteranomaly#737373

Tritanopia#737373

Tritanomaly#737373

Achromatopsia#737373

Test a full palette in the color blindness simulator.

Using #737373 in Code

Copy-ready declarations for the places this color usually ends up.

CSS custom property--color-737373: #737373;

CSS backgroundbackground-color: #737373;

Tailwind configcolors: { 'color-737373': '#737373' }

SwiftUIColor(red: 0.451, green: 0.451, blue: 0.451)

Android XML<color name="color_737373">#737373</color>

SVG fillfill="#737373"

More Gray Colors

#737373 sits in the gray family. These are its neighbours across that family's full range, each with its own breakdown.

738276 727472 738678 71797e 757575 71717b 796878 6e6e6e 79716b 6b6e70 7a7a7a 6b6b6b 807473 8a7f80 989898 a9a9a9 b5b5b5 c4c4c4 d6d3d1 2b2b2b 404040 4d4d4d 555d50 666666

#737373 Frequently Asked Questions

What color is #737373?

#737373 is a mid-tone gray — rgb(115, 115, 115) in RGB and hsl(0, 0%, 45%) in HSL. It carries no registered color name of its own; the closest named color is Sonic Silver (#757575), which is indistinguishable to the eye at a CIE76 distance of 0.8.

What is the RGB value of #737373?

#737373 is rgb(115, 115, 115) — red 115, green 115, and blue 115 on the 0-255 scale.

What is the CMYK value of #737373?

#737373 converts to approximately cmyk(0%, 0%, 0%, 55%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.

Should text on #737373 be black or white?

White text is the more readable choice. #737373 scores 4.74:1 against white and 4.43:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.

Can I write #737373 as a CSS color keyword?

No. #737373 is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is dimgray (#696969) at a CIE76 distance of 4.03, which is very hard to tell apart.

Open #737373 in a Tool

Hex to RGB Hex to HSL Hex to CMYK Hex to OKLCH Hex to Pantone Build a palette Make a gradient

Keep exploring: every gray in the color library, the guide to shades of gray, or the full color library.