#cb4037

Color #cb4037

A moderately saturated medium red.

Closest named color Firebrick #b22222 · ΔE 8.91 Nearest Tailwind class red-600 #e7000b · ΔE 7.3

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

Conversions

HEX

#cb4037

RGB

rgb(203, 64, 55)

HSL

hsl(3.6, 58.7%, 50.6%)

HSV / HSB

hsv(3.6, 72.9%, 79.6%)

CMYK

cmyk(0%, 68.5%, 72.9%, 20.4%)

LAB

lab(47.81, 54.28, 36.55)

LCH

lch(47.81, 65.44, 33.95)

OKLCH

oklch(57.1%, 0.177, 27.81)

HWB

hwb(3.6, 21.6%, 20.4%)

Harmony colors

Complementary

#37c2cb

Analogous

#cb3778

#cb4037

#cb8a37

Triadic

#cb4037

#37cb40

#4037cb

Split-complementary

#cb4037

#37cb8a

#3778cb

Tetradic

#cb4037

#c2cb37

#37c2cb

#4037cb

Square

#cb4037

#78cb37

#37c2cb

#8a37cb

Shades

Color #cb4037 mixed toward black.

#ab342c

#892a24

#661f1b

#441512

#220a09

Tints

Color #cb4037 mixed toward white.

#d46058

#dc807a

#e59f9b

#eebfbc

#f6dfde

Tones

Color #cb4037 mixed toward gray.

#bf4b43

#b25650

#a6605c

#9a6b68

#8d7675

Accessibility

Aa White text on this color

4.85:1

Aa Black text on this color

4.33:1

White text reads better on this background (4.85:1). That passes WCAG AA (≥4.5:1) for normal-size text, but not AAA.

Under color vision deficiencies

Protanopia

#a2a139 · ΔE 47.3

Deuteranopia

#a8b03a · ΔE 52.1

Tritanopia

#c73b3b · ΔE 2.6

Achromatopsia

#717171 · ΔE 26.7

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

Code

CSS

background-color: #cb4037;

Tailwind (arbitrary value)

bg-[#cb4037]

Related colors

Misty Rose #ffe4e1

Salmon #fa8072

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Frequently asked questions

#cb4037 (#cb4037) is rgb(203, 64, 55) in RGB.

No, #cb4037 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 #cb4037, or check how it holds up for accessibility.

Generate a palette → Check contrast