#3B3B3B · Iron

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#3B3B3B is a dark, nearly neutral gray color, closest to Iron and near Iron and Onyx. In OKLCH it has 35% lightness and 0.00 chroma at hue 0°. Gray suggests neutrality and balance; it lets other colors lead, which makes #3B3B3B a natural choice for text, borders and interface chrome. It appears in 1 ColorSwoop palette.

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HEX#3B3B3B
RGBrgb(59, 59, 59)
HSLhsl(0, 0%, 23%)
CMYK0, 0, 0, 77
CSS var--iron
Contrast11.2:1 white · 1.87:1 black

Similar named colors

How to use #3B3B3B

White text passes WCAG AA on #3B3B3B (11.2:1); black does not, so keep dark text off it.

For a calm scheme pair #3B3B3B with its analogous neighbors #3B3B3B and #3B3B3B; for contrast use its complement #3B3B3B as a small accent, and anchor everything with a neutral such as #F5F5F7.

--iron: #3B3B3B;

Shades & tints

Color harmonies for #3B3B3B

Complementary

Analogous

Triadic

Split complementary

Tetradic

Palettes with #3B3B3B