#42100b

Color #42100b

A vivid, highly saturated very dark red.

Closest named color Black #000000 · ΔE 31.15 Nearest Tailwind class red-950 #460809 · ΔE 2.5

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Conversions

HEX

#42100b

RGB

rgb(66, 16, 11)

HSL

hsl(5.5, 71.4%, 15.1%)

HSV / HSB

hsv(5.5, 83.3%, 25.9%)

CMYK

cmyk(0%, 75.8%, 83.3%, 74.1%)

LAB

lab(12.94, 23.8, 15.38)

LCH

lch(12.94, 28.34, 32.87)

OKLCH

oklch(25.9%, 0.0783, 29.18)

HWB

hwb(5.5, 4.3%, 74.1%)

Harmony colors

Complementary

#0b3d42

Analogous

#420b21

#42100b

#422c0b

Triadic

#42100b

#0b4210

#100b42

Split-complementary

#42100b

#0b422c

#0b2142

Tetradic

#42100b

#3d420b

#0b3d42

#100b42

Square

#42100b

#21420b

#0b3d42

#2c0b42

Shades

Color #42100b mixed toward black.

#370d09

#2c0b07

#210806

#160504

#0b0302

Tints

Color #42100b mixed toward white.

#801f15

#be2e20

#e05445

#ea8d83

#f5c6c1

Tones

Color #42100b mixed toward gray.

#3d1410

#391814

#341b19

#301f1d

#2b2322

Accessibility

Aa White text on this color

16.02:1

Aa Black text on this color

1.31:1

White text reads better on this background (16.02:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#33330c · ΔE 27.7

Deuteranopia

#35380d · ΔE 29.6

Tritanopia

#400d0e · ΔE 2.1

Achromatopsia

#212121 · ΔE 20.3

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

Code

CSS

background-color: #42100b;

Tailwind (arbitrary value)

bg-[#42100b]

Related colors

Misty Rose #ffe4e1

Salmon #fa8072

Tomato #ff6347

Red #ff0000

Maroon #800000

Black #000000

Frequently asked questions

#42100b (#42100b) is rgb(66, 16, 11) in RGB.

No, #42100b 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 #42100b, or check how it holds up for accessibility.

Generate a palette → Check contrast