#373737 · near Onyx

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#373737 (RGB 55, 55, 55) is a dark, nearly neutral gray, closest to Onyx and near Jet and Gunmetal. Gray suggests neutrality and balance; it lets other colors lead, which makes #373737 a natural choice for text, borders and interface chrome. It appears in 5 ColorSwoop palettes. In OKLCH it has 34% lightness and 0.00 chroma at hue 0°.

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HEX#373737
RGBrgb(55, 55, 55)
HSLhsl(0, 0%, 22%)
CMYK0, 0, 0, 78
CSS var--onyx
Contrast11.9:1 white · 1.76:1 black

Similar named colors

Onyx #353839Jet #343434Gunmetal #2A3439Iron #3B3F42Taupe #483C32

How to use #373737

White text passes WCAG AA on #373737 (11.9:1); black does not, so keep dark text off it.

For a calm scheme pair #373737 with its analogous neighbors #383838 and #383838; for contrast use its complement #383838 as a small accent, and anchor everything with a neutral such as #F5F5F7.

--onyx: #373737;

Color card

#373737 hex color card: near Onyx, RGB 55, 55, 55
Save or share #373737 as an image — hex, RGB and HSL on the color itself.

Shades & tints

#0B0B0B#161616#212121#2C2C2C#373737#5F5F5F#878787#AFAFAF#D7D7D7

Color harmonies for #373737

Complementary

#373737#383838

Analogous

#373737#383838#383838

Triadic

#373737#383838#383838

Split complementary

#373737#383838#383838

Tetradic

#373737#383838#383838#383838

Palettes with #373737