#3B4247 · near Iron

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#3B4247 (RGB 59, 66, 71) is a dark, nearly neutral gray, closest to Iron and near Charcoal and Charcoal Blue. Gray suggests neutrality and balance; it lets other colors lead, which makes #3B4247 a natural choice for text, borders and interface chrome. It appears in 1 ColorSwoop palette. In OKLCH it has 37% lightness and 0.01 chroma at hue 239°.

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HEX#3B4247
RGBrgb(59, 66, 71)
HSLhsl(205, 9%, 25%)
CMYK17, 7, 0, 72
CSS var--iron
Contrast10.21:1 white · 2.06:1 black

Similar named colors

Iron #3B3F42Charcoal #36454FCharcoal Blue #2C3E50Taupe #483C32Onyx #353839

How to use #3B4247

White text passes WCAG AA on #3B4247 (10.21:1); black does not, so keep dark text off it.

For a calm scheme pair #3B4247 with its analogous neighbors #3A4545 and #3A3B45; for contrast use its complement #453F3A as a small accent, and anchor everything with a neutral such as #F5F5F7.

--iron: #3B4247;

Color card

#3B4247 hex color card: near Iron, RGB 59, 66, 71
Save or share #3B4247 as an image — hex, RGB and HSL on the color itself.

Shades & tints

#0C0D0E#181A1C#23282B#2F3539#3B4247#62686C#898E91#B1B3B5#D8D9DA

Color harmonies for #3B4247

Complementary

#3B4247#453F3A

Analogous

#3B4247#3A4545#3A3B45

Triadic

#3B4247#453A41#41453A

Split complementary

#3B4247#453A3B#45453A

Tetradic

#3B4247#453A45#453F3A#3B453A

Palettes with #3B4247