#b7100b

Color #b7100b

A vivid, highly saturated dark red.

Closest named color Firebrick #b22222 · ΔE 11.93 Nearest Tailwind class red-700 #c10007 · ΔE 1.8

Open in Palette generator Color wheel Color mixer Contrast checker Blindness simulator Gradient

Conversions

HEX

#b7100b

RGB

rgb(183, 16, 11)

HSL

hsl(1.7, 88.7%, 38%)

HSV / HSB

hsv(1.7, 94%, 71.8%)

CMYK

cmyk(0%, 91.3%, 94%, 28.2%)

LAB

lab(38.67, 60.66, 48.59)

LCH

lch(38.67, 77.72, 38.7)

OKLCH

oklch(49.5%, 0.1956, 29.05)

HWB

hwb(1.7, 4.3%, 28.2%)

Harmony colors

Complementary

#0bb2b7

Analogous

#b70b5c

#b7100b

#b7660b

Triadic

#b7100b

#0bb710

#100bb7

Split-complementary

#b7100b

#0bb766

#0b5cb7

Tetradic

#b7100b

#b2b70b

#0bb2b7

#100bb7

Square

#b7100b

#5cb70b

#0bb2b7

#660bb7

Shades

Color #b7100b mixed toward black.

#980d09

#7a0b07

#5b0805

#3d0504

#1e0302

Tints

Color #b7100b mixed toward white.

#e9140e

#f33d38

#f66e6a

#f99e9c

#fccfcd

Tones

Color #b7100b mixed toward gray.

#a91d19

#9a2b28

#8c3836

#7e4644

#6f5353

Accessibility

Aa White text on this color

6.79:1

Aa Black text on this color

3.09:1

White text reads better on this background (6.79:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#8e8d0c · ΔE 48.8

Deuteranopia

#949c0d · ΔE 54

Tritanopia

#b30d0e · ΔE 1.2

Achromatopsia

#5b5b5b · ΔE 28.3

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #b7100b;

Tailwind (arbitrary value)

bg-[#b7100b]

Related colors

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Dark Gray #a9a9a9

Dark Red #8b0000

Frequently asked questions

#b7100b (#b7100b) is rgb(183, 16, 11) in RGB.

No, #b7100b is not web-safe. The nearest web-safe colors are among its tones and shades below.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #b7100b, or check how it holds up for accessibility.

Generate a palette → Check contrast