#1b0303

Color #1b0303

A vivid, highly saturated very dark red.

Closest named color Black #000000 · ΔE 9.58 Nearest Tailwind class mauve-900 #1d161e · ΔE 7.6

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Conversions

HEX

#1b0303

RGB

rgb(27, 3, 3)

HSL

hsl(0, 80%, 5.9%)

HSV / HSB

hsv(0, 88.9%, 10.6%)

CMYK

cmyk(0%, 88.9%, 88.9%, 89.4%)

LAB

lab(2.75, 8.66, 3.05)

LCH

lch(2.75, 9.18, 19.4)

OKLCH

oklch(15.1%, 0.0467, 24.7)

HWB

hwb(0, 1.2%, 89.4%)

Harmony colors

Complementary

#031b1b

Analogous

#1b030f

#1b0303

#1b0f03

Triadic

#1b0303

#031b03

#03031b

Split-complementary

#1b0303

#031b0f

#030f1b

Tetradic

#1b0303

#1b1b03

#031b1b

#03031b

Square

#1b0303

#0f1b03

#031b1b

#0f031b

Shades

Color #1b0303 mixed toward black.

#170303

#120202

#0e0202

#090101

#050101

Tints

Color #1b0303 mixed toward white.

#630b0b

#ab1313

#e72727

#ef6f6f

#f7b7b7

Tones

Color #1b0303 mixed toward gray.

#190505

#170707

#150909

#130b0b

#110d0d

Accessibility

Aa White text on this color

19.79:1

Aa Black text on this color

1.06:1

White text reads better on this background (19.79:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#131303 · ΔE 15.4

Deuteranopia

#141603 · ΔE 18

Tritanopia

#1a0303 · ΔE 0.5

Achromatopsia

#0a0a0a · ΔE 10.3

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

Code

CSS

background-color: #1b0303;

Tailwind (arbitrary value)

bg-[#1b0303]

Related colors

Red #ff0000

Maroon #800000

Black #000000

Brown #a52a2a

Dark Gray #a9a9a9

Dark Red #8b0000

Frequently asked questions

#1b0303 (#1b0303) is rgb(27, 3, 3) in RGB.

No, #1b0303 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 #1b0303, or check how it holds up for accessibility.

Generate a palette → Check contrast