#b40a00

Color #b40a00

A vivid, highly saturated dark red.

Closest named color Firebrick #b22222 · ΔE 15.01 Nearest Tailwind class red-700 #c10007 · ΔE 2.7

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

Conversions

HEX

#b40a00

RGB

rgb(180, 10, 0)

HSL

hsl(3.3, 100%, 35.3%)

HSV / HSB

hsv(3.3, 100%, 70.6%)

CMYK

cmyk(0%, 94.4%, 100%, 29.4%)

LAB

lab(37.71, 60.52, 51.87)

LCH

lch(37.71, 79.71, 40.6)

OKLCH

oklch(48.6%, 0.1956, 29.89)

HWB

hwb(3.3, 0%, 29.4%)

Harmony colors

Complementary

#00aab4

Analogous

#b40050

#b40a00

#b46400

Triadic

#b40a00

#00b40a

#0a00b4

Split-complementary

#b40a00

#00b464

#0050b4

Tetradic

#b40a00

#aab400

#00aab4

#0a00b4

Square

#b40a00

#50b400

#00aab4

#6400b4

Shades

Color #b40a00 mixed toward black.

#960800

#780700

#5a0500

#3c0300

#1e0200

Tints

Color #b40a00 mixed toward white.

#eb0d00

#ff2f23

#ff635a

#ff9791

#ffcbc8

Tones

Color #b40a00 mixed toward gray.

#a5170f

#96251e

#87322d

#783f3c

#694d4b

Accessibility

Aa White text on this color

7.04:1

Aa Black text on this color

2.98:1

White text reads better on this background (7.04:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#8b8a02 · ΔE 47.9

Deuteranopia

#929903 · ΔE 53

Tritanopia

#b00405 · ΔE 1.6

Achromatopsia

#595959 · ΔE 28.6

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

Code

CSS

background-color: #b40a00;

Tailwind (arbitrary value)

bg-[#b40a00]

Related colors

Misty Rose #ffe4e1

Salmon #fa8072

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Frequently asked questions

#b40a00 (#b40a00) is rgb(180, 10, 0) in RGB.

No, #b40a00 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.

Try it → Accessibility

Contrast Checker

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

Try it → Generators

Palette Generator

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

Try it →

Build something with this color

Generate a full palette from #b40a00, or check how it holds up for accessibility.

Generate a palette → Check contrast