#21123d

Color #21123d

A moderately saturated very dark purple.

Closest named color Dark Slate Blue #483d8b · ΔE 27.97 Nearest Tailwind class indigo-950 #1e1a4d · ΔE 4.4

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Conversions

HEX

#21123d

RGB

rgb(33, 18, 61)

HSL

hsl(260.9, 54.4%, 15.5%)

HSV / HSB

hsv(260.9, 70.5%, 23.9%)

CMYK

cmyk(45.9%, 70.5%, 0%, 76.1%)

LAB

lab(9.74, 19.43, -24.95)

LCH

lch(9.74, 31.62, 307.91)

OKLCH

oklch(23%, 0.0789, 295.62)

HWB

hwb(260.9, 7.1%, 76.1%)

Harmony colors

Complementary

#2e3d12

Analogous

#12193d

#21123d

#37123d

Triadic

#21123d

#3d2112

#123d21

Split-complementary

#21123d

#3d3712

#193d12

Tetradic

#21123d

#3d122e

#2e3d12

#123d21

Square

#21123d

#3d1219

#2e3d12

#123d37

Shades

Color #21123d mixed toward black.

#1c0f33

#160c29

#11091f

#0b0614

#06030a

Tints

Color #21123d mixed toward white.

#3f2274

#5d33ac

#8159ce

#ab90de

#d5c8ef

Tones

Color #21123d mixed toward gray.

#221639

#231936

#241d32

#25202f

#26242b

Accessibility

Aa White text on this color

17.23:1

Aa Black text on this color

1.22:1

White text reads better on this background (17.23:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#1b1b36 · ΔE 6.8

Deuteranopia

#1c1d34 · ΔE 8.6

Tritanopia

#20302e · ΔE 24.3

Achromatopsia

#1b1b1b · ΔE 20.2

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

Code

CSS

background-color: #21123d;

Tailwind (arbitrary value)

bg-[#21123d]

Related colors

Medium Purple #9370db

Rebecca Purple #663399

Blue Violet #8a2be2

Dark Slate Blue #483d8b

Medium Slate Blue #7b68ee

Slate Blue #6a5acd

Frequently asked questions

#21123d (#21123d) is rgb(33, 18, 61) in RGB.

No, #21123d is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

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 #21123d, or check how it holds up for accessibility.

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