#e31b00

Color #e31b00

A vivid, highly saturated medium red.

Closest named color Orange Red #ff4500 · ΔE 11.88 Nearest Tailwind class red-600 #e7000b · ΔE 2.3

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

Conversions

HEX

#e31b00

RGB

rgb(227, 27, 0)

HSL

hsl(7.1, 100%, 44.5%)

HSV / HSB

hsv(7.1, 100%, 89%)

CMYK

cmyk(0%, 88.1%, 100%, 11%)

LAB

lab(48.41, 70.47, 61.91)

LCH

lch(48.41, 93.8, 41.3)

OKLCH

oklch(58.3%, 0.2291, 30.68)

HWB

hwb(7.1, 0%, 11%)

Harmony colors

Complementary

#00c8e3

Analogous

#e30057

#e31b00

#e38c00

Triadic

#e31b00

#00e31b

#1b00e3

Split-complementary

#e31b00

#00e38c

#0057e3

Tetradic

#e31b00

#c8e300

#00c8e3

#1b00e3

Square

#e31b00

#57e300

#00c8e3

#8c00e3

Shades

Color #e31b00 mixed toward black.

#bd1600

#971200

#710d00

#4c0900

#260400

Tints

Color #e31b00 mixed toward white.

#ff2f13

#ff5942

#ff8271

#ffaca1

#ffd5d0

Tones

Color #e31b00 mixed toward gray.

#d02913

#bd3826

#aa4639

#97554c

#84635f

Accessibility

Aa White text on this color

4.75:1

Aa Black text on this color

4.42:1

White text reads better on this background (4.75:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#b1b009 · ΔE 52.4

Deuteranopia

#b9c20b · ΔE 57.2

Tritanopia

#de0f10 · ΔE 3

Achromatopsia

#737373 · ΔE 30.2

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

Code

CSS

background-color: #e31b00;

Tailwind (arbitrary value)

bg-[#e31b00]

Related colors

Salmon #fa8072

Misty Rose #ffe4e1

Tomato #ff6347

Red #ff0000

Maroon #800000

Black #000000

Frequently asked questions

#e31b00 (#e31b00) is rgb(227, 27, 0) in RGB.

No, #e31b00 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 #e31b00, or check how it holds up for accessibility.

Generate a palette → Check contrast