#353A40 · near Onyx

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#353A40 (RGB 53, 58, 64) is a dark, nearly neutral gray, closest to Onyx and near Iron and Jet. Gray suggests neutrality and balance; it lets other colors lead, which makes #353A40 a natural choice for text, borders and interface chrome. It appears in 1 ColorSwoop palette. In OKLCH it has 35% lightness and 0.01 chroma at hue 253°.

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HEX#353A40
RGBrgb(53, 58, 64)
HSLhsl(213, 9%, 23%)
CMYK17, 9, 0, 75
CSS var--onyx
Contrast11.47:1 white · 1.83:1 black

Similar named colors

Onyx #353839Iron #3B3F42Jet #343434Charcoal Blue #2C3E50Gunmetal #2A3439

How to use #353A40

White text passes WCAG AA on #353A40 (11.47:1); black does not, so keep dark text off it.

For a calm scheme pair #353A40 with its analogous neighbors #353F40 and #363540; for contrast use its complement #403B35 as a small accent, and anchor everything with a neutral such as #F5F5F7.

--onyx: #353A40;

Color card

#353A40 hex color card: near Onyx, RGB 53, 58, 64
Save or share #353A40 as an image — hex, RGB and HSL on the color itself.

Shades & tints

#0B0C0D#15171A#202326#2A2E33#353A40#5D6166#86898C#AEB0B3#D7D8D9

Color harmonies for #353A40

Complementary

#353A40#403B35

Analogous

#353A40#353F40#363540

Triadic

#353A40#40353A#3A4035

Split complementary

#353A40#403635#3F4035

Tetradic

#353A40#40353F#403B35#354036

Palettes with #353A40